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Grade-wise curriculum

CBSE Grade 9 Science Curriculum and Practice

Chapter-wise Grade 9 Science practice aligned to the CBSE curriculum. Explore topics, skills, worksheets, and assignments for Cell, Tissues, Reproduction, Diversity, Exploring Mixtures and their Separation, and Structure of an Atom, and more.

Aligned with CBSE curriculumSkill-wise practiceWorksheets and assignmentsProgress tracking after sign-in

Chapter-wise curriculum

Chapters, topics, and skills

Check what is covered in this grade and where your child can start practicing.

Chapter 1

Chapter 1: Cell

Structure and function of cells, organelles, membranes, division and cell biology applications.

7 topics16 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in
Skill: Explain discovery of cellUnderstand how cells were discovered and why microscopes changed biology.
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Skill: Differentiate plant and animal cellsCompare plant and animal cells using visible structures and functions.
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Skill: Differentiate prokaryotic and eukaryotic cellsClassify cells as prokaryotic or eukaryotic using nucleus and organelle features.
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Topic: Cell as Life Unit

2 skills
Skill: Explain cell as structural unit of lifeExplain why the cell is the basic structural unit of organisms.
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Skill: Explain cell as functional unit of lifeConnect cellular activities with life processes in organisms.
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Skill: Identify nucleus and its roleDescribe the nucleus as the control centre and genetic material holder.
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Skill: Explain mitochondria and chloroplast functionsRelate mitochondria to energy release and chloroplasts to photosynthesis.
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Skill: Explain endoplasmic reticulum and vacuolesDescribe transport and storage functions inside the cell.
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Skill: Compare plasma membrane and cell wallCompare boundary structures and their roles in protection and exchange.
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Skill: Differentiate diffusion and osmosisCompare movement of substances by diffusion and osmosis.
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Skill: Demonstrate osmosis in cellsUse an activity to show water movement through a semi-permeable membrane.
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Skill: Explain mitosis and meiosis rolesExplain how cell division supports growth, repair, reproduction and variation.
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Topic: Cell Biomolecules

1 skill
Skill: Identify biomolecules in cellsDescribe how biomolecules contribute to cell structure and function.
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Skill: Prepare slides to observe cellsPrepare and observe temporary mounts to identify basic cell structures.
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Skill: Design models of cell organellesCreate low-cost models to represent organelle structure and function.
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Skill: Connect cell biology to human healthUse examples like mitochondrial dysfunction to connect cells with health.
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Chapter 2

Chapter 2: Tissues

Plant and animal tissues, levels of organisation, musculoskeletal system and tissue-based inquiry.

6 topics16 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Tissue Basics

2 skills
Skill: Explain importance of tissuesExplain why multicellular organisms need specialised tissues.
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Skill: Describe levels of biological organisationTrace organisation from cells to tissues, organs and organ systems.
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Topic: Plant Tissues

4 skills
Skill: Differentiate meristematic and permanent tissuesCompare dividing tissues and specialised permanent tissues in plants.
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Skill: Identify types of meristematic tissueIdentify apical, lateral and intercalary meristems and their functions.
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Skill: Compare simple permanent tissuesCompare parenchyma, collenchyma and sclerenchyma by structure and function.
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Skill: Compare complex permanent tissuesCompare xylem and phloem in transport and support functions.
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Topic: Animal Tissues

4 skills
Skill: Classify epithelial tissuesIdentify epithelial tissue types and connect them with covering and protection.
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Skill: Explain connective tissue functionsDescribe blood, bone, cartilage and other connective tissues by role.
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Skill: Compare muscle tissue typesCompare striated, smooth and cardiac muscles by location and function.
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Skill: Describe nervous tissue functionExplain how neurons support coordination and response.
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Skill: Relate tissue structure to functionConnect tissue features with the jobs they perform in organisms.
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Topic: Musculoskeletal System

2 skills
Skill: Identify different types of jointsRecognise major joint types and their role in movement.
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Skill: Explain care of musculoskeletal systemExplain injury prevention, posture, nutrition and exercise for healthy movement.
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Skill: Observe plant tissue growthCarry out an activity to study growth due to apical meristem.
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Skill: Represent tissue experiment dataUse tables, diagrams or graphs to present tissue investigation findings.
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Skill: Connect tissues with fitness and yogaExplain how muscles, bones, cartilage and posture support fitness.
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Chapter 3

Chapter 3: Reproduction

Asexual and sexual reproduction in plants and humans, variation, reproductive health and ecological connections.

8 topics18 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Reproduction Modes

1 skill
Skill: Compare sexual and asexual reproductionCompare the two major modes of reproduction with examples.
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Topic: Asexual Reproduction

1 skill
Skill: Identify types of asexual reproductionRecognise fission, budding, fragmentation, spore formation and vegetative propagation.
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Skill: Identify flower reproductive partsIdentify stamen, pistil, ovary, ovule and related flower parts.
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Skill: Explain pollination in flowering plantsExplain self-pollination, cross-pollination and agents of pollination.
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Skill: Explain fertilisation in flowering plantsDescribe how fertilisation leads to seed formation in flowering plants.
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Skill: Differentiate ovule seed ovary and fruitDistinguish ovule from seed and ovary from fruit.
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Skill: Explain seed dispersal agentsIdentify biotic and abiotic agents involved in seed dispersal.
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Skill: Analyse plant pollinator interactionsExplain how plants and pollinators interact in ecosystems.
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Topic: Human Reproduction

5 skills
Skill: Describe male reproductive systemIdentify major male reproductive organs and their functions.
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Skill: Describe female reproductive systemIdentify major female reproductive organs and their functions.
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Skill: Explain gamete formation and fertilisationExplain sperm, egg formation and fertilisation in humans.
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Skill: Explain pregnancy and embryo developmentDescribe basic stages from fertilisation to embryo development.
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Skill: Explain menstrual cycle basicsDescribe the menstrual cycle and its biological purpose.
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Skill: Explain variation through sexual reproductionExplain why sexual reproduction produces variation among offspring.
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Topic: Reproductive Health

2 skills
Skill: Explain reproductive health and hygieneDescribe hygiene, health and responsible care during reproductive development.
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Skill: Recognise birth control importanceUnderstand contraception as a health and population-control measure.
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Skill: Illustrate reproductive systemsDraw labelled diagrams of plant and human reproductive systems.
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Skill: Discuss assisted reproductive technologiesRecognise how medical advances support reproductive health.
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Chapter 4

Chapter 4: Diversity

Classification, five kingdoms, major plant and animal groups, binomial nomenclature, viruses and ecological roles.

6 topics16 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in
Skill: Explain need for classificationExplain why scientists classify living organisms.
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Skill: Classify by cellular organisationGroup organisms using cell number and organisation.
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Skill: Classify by mode of nutritionUse autotrophic and heterotrophic nutrition for classification.
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Topic: Five Kingdoms

5 skills
Skill: Identify Monera featuresDescribe key features and examples of Monera.
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Skill: Identify Protista featuresDescribe key features and examples of Protista.
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Skill: Identify Fungi featuresDescribe key features and examples of Fungi.
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Skill: Identify Plantae featuresDescribe key features and examples of Plantae.
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Skill: Identify Animalia featuresDescribe key features and examples of Animalia.
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Skill: Describe major plant divisionsRecognise major plant groups and their distinguishing features.
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Skill: Describe major animal divisionsRecognise major animal groups and their distinguishing features.
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Skill: Explain binomial nomenclature rulesDescribe naming rules used in binomial nomenclature.
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Skill: Apply binomial nomenclature locallyUse scientific names for common organisms in the surroundings.
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Skill: Describe acellular entities virusesExplain why viruses are considered acellular entities.
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Topic: Ecological Roles

2 skills
Skill: Analyse lichens and symbiosisExplain lichens as interactions between different organisms.
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Skill: Discuss ecological roles of organismsDescribe how diverse organisms support ecosystem balance.
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Skill: Recognise three domain classificationIdentify three-domain classification as a molecular basis of grouping life.
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Chapter 5

Chapter 5: Exploring Mixtures and their Separation

Mixture types, solutions, concentration, separation methods, solubility and laboratory inquiry.

6 topics19 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Mixture Classification

2 skills
Skill: Differentiate homogeneous and heterogeneous mixturesCompare mixtures based on uniformity and observable properties.
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Skill: Classify solutions suspensions and colloidsClassify mixtures using particle size, stability and scattering properties.
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Topic: Mixture Properties

3 skills
Skill: Explain solution propertiesDescribe solute, solvent and properties of true solutions.
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Skill: Explain suspension propertiesDescribe suspension behaviour and separation by settling or filtration.
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Skill: Explain colloid propertiesDescribe colloids and effects such as scattering of light.
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Skill: Define concentration of a solutionExplain concentration as amount of solute in solution.
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Skill: Calculate mass by mass percentageSolve concentration problems using mass by mass percentage.
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Skill: Calculate mass by volume percentageSolve concentration problems using mass by volume percentage.
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Skill: Calculate volume by volume percentageSolve concentration problems using volume by volume percentage.
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Topic: Separation Techniques

5 skills
Skill: Explain crystallisationExplain how crystallisation separates and purifies solids.
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Skill: Explain distillationExplain separation using boiling point differences.
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Skill: Explain paper chromatographyExplain separation using movement of components on paper.
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Skill: Explain sublimationExplain separation using direct solid-to-gas change.
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Skill: Explain centrifugation and coagulationExplain separation using spinning and particle aggregation.
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Skill: Analyse solubility temperature graphsInterpret how solubility changes with temperature using graphs.
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Skill: Relate separation methods to daily practicesConnect separation techniques with local and household practices.
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Skill: Use laboratory apparatus safelyHandle chemicals and apparatus safely during mixture activities.
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Skill: Design separation apparatus modelsCreate eco-friendly models such as paperfuge or distillation setup.
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Skill: Plan experiments on mixturesForm hypotheses, collect data and communicate findings on mixture separation.
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Chapter 6

Chapter 6: Structure of an Atom

Atomic models, subatomic particles, electronic configuration, valency, isotopes, isobars and atomic inquiry.

8 topics16 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Atomic Basics

1 skill
Skill: Explain atoms as basic units of elementsDescribe atoms as the basic units that make up elements.
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Topic: Subatomic Particles

1 skill
Skill: Differentiate electrons protons and neutronsCompare subatomic particles by charge, mass idea and position.
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Topic: Atomic Models

3 skills
Skill: Describe Thomson atomic modelExplain Thomson model and its limitation.
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Skill: Describe Rutherford atomic modelExplain Rutherford scattering model and nuclear atom idea.
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Skill: Describe Bohr atomic modelExplain shells and stable orbits in Bohr model.
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Skill: Distribute electrons in shells up to 18 elementsWrite K, L and M shell distribution for elements up to atomic number 18.
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Skill: Apply maximum electron capacity ruleUse shell capacity rules to arrange electrons.
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Skill: Define atomic number and mass numberExplain atomic number and mass number with notation.
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Skill: Calculate protons neutrons and electronsCalculate particle numbers from atomic and mass numbers.
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Skill: Explain valence electrons and valencyRelate outer-shell electrons to combining capacity.
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Skill: Interpret atomic data to classify elementsUse atomic mass, shell capacity and valency data accurately.
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Topic: Isotopes and Isobars

1 skill
Skill: Differentiate isotopes and isobarsCompare atoms with same atomic number or same mass number.
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Topic: Chemical Symbols

1 skill
Skill: Apply symbols for first eighteen elementsUse correct chemical symbols for the first eighteen elements.
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Skill: Draw labelled atomic modelsDraw Thomson, Rutherford and Bohr model diagrams.
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Skill: Design atom model activitiesCreate models or games using atomic number, mass number and particles.
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Skill: Discuss evolution of atomic structureExplain how discoveries changed atomic models over time.
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Chapter 7

Chapter 7: Atoms and Molecules

Chemical laws, Dalton theory, molecules, ions, formula writing, molecular mass and compound models.

7 topics17 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Chemical Laws

3 skills
Skill: State law of conservation of massState that mass is conserved in chemical reactions.
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Skill: Verify law of conservation of massPlan or explain an activity to verify conservation of mass.
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Skill: State law of constant proportionsExplain fixed composition in chemical compounds.
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Topic: Dalton Atomic Theory

1 skill
Skill: Explain Dalton atomic theoryDescribe major postulates of Dalton atomic theory.
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Skill: Differentiate atoms molecules elements and compoundsCompare basic chemical species using examples.
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Skill: Differentiate molecule typesDistinguish molecules of elements and covalent compounds.
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Topic: Ions and Bonding

3 skills
Skill: Differentiate ionic and covalent compoundsCompare compounds by bonding type and properties.
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Skill: Differentiate cations and anionsIdentify positive and negative ions from charge.
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Skill: Calculate ion charge from atomic numberUse electronic configuration and valency to infer simple ion charge.
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Topic: Chemical Formulae

2 skills
Skill: Write chemical formulae using valencyWrite formulae of simple compounds using symbols and valencies.
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Skill: Use scientific symbols and conventionsApply correct notation while writing formulae and chemical species.
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Skill: Differentiate molecular mass and formula unit massDistinguish mass calculations for molecules and ionic compounds.
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Skill: Calculate molecular massCalculate molecular mass from atomic masses.
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Skill: Calculate formula unit massCalculate formula unit mass of ionic compounds.
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Skill: Draw electron dot structuresRepresent atoms and simple molecules using electron dot diagrams.
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Skill: Construct compound modelsBuild simple models to show atoms combining in fixed ratios.
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Skill: Connect bonding to applicationsDiscuss useful applications of atoms, molecules and bonding in life.
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Chapter 8

Chapter 8: Earth as a System: Energy, Matter & Life

Earth spheres, solar radiation, differential heating, winds, weather, climate, cycles and human impact.

8 topics18 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Earth System Spheres

2 skills
Skill: Explain interconnected Earth spheresExplain links among biosphere, geosphere, hydrosphere, cryosphere and atmosphere.
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Skill: Identify components interacting with solar energyIdentify Earth components that absorb, reflect or transmit solar radiation.
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Topic: Solar Radiation

3 skills
Skill: Explain nature of solar radiationDescribe solar radiation as electromagnetic radiation.
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Skill: Relate electromagnetic waves to frequencyConnect solar radiation with frequencies and electromagnetic spectrum.
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Skill: Explain speed of light ideaRecognise light as fast-moving electromagnetic radiation from the Sun.
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Topic: Differential Heating

3 skills
Skill: Explain causes of differential heatingExplain the role of shape, latitude and tilt in uneven heating.
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Skill: Compare absorption and reflection by surfacesExplain how different surfaces warm differently.
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Skill: Relate differential heating to windsConnect uneven heating with air movement and wind formation.
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Topic: Local Breezes

2 skills
Skill: Explain land and sea breezesExplain daytime and nighttime breeze patterns using heating differences.
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Skill: Explain mountain and valley breezesExplain mountain and valley breeze formation using air movement.
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Skill: Explain atmosphere role in weather and climateDescribe how atmosphere affects weather and climate patterns.
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Topic: Biogeochemical Cycles

4 skills
Skill: Explain water cycleDescribe movement of water through Earth systems.
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Skill: Explain carbon cycleDescribe carbon movement between living and non-living systems.
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Skill: Explain nitrogen cycleDescribe nitrogen movement and its importance for organisms.
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Skill: Explain oxygen cycleDescribe oxygen circulation between organisms and the environment.
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Topic: Human Impact

1 skill
Skill: Analyse human impact on Earth systemsExplain how human activities affect interconnected Earth systems.
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Skill: Draw cycle and energy flow mapsCreate flow charts or concept maps for cycles and solar interactions.
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Skill: Investigate differential heatingForm hypotheses and communicate findings on heating or cycle activities.
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Chapter 9

Chapter 9: Motion

Distance, displacement, speed, velocity, acceleration, motion graphs, kinematic equations and circular motion.

6 topics16 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Motion Quantities

4 skills
Skill: Differentiate distance and displacementCompare path length and shortest change in position.
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Skill: Differentiate speed and velocityCompare scalar speed with directional velocity.
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Skill: Define displacement velocity and accelerationDefine core motion quantities clearly.
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Skill: Use SI units for motion quantitiesExpress displacement, velocity and acceleration in correct SI units.
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Topic: Graphs of Motion

4 skills
Skill: Plot position time graphsPlot position-time graphs for one-dimensional motion.
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Skill: Interpret position time graphsUse slope and graph shape to describe motion.
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Skill: Plot velocity time graphsPlot velocity-time graphs for constant velocity or acceleration.
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Skill: Interpret velocity time graphsFind acceleration and displacement from velocity-time graphs.
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Topic: Kinematic Equations

2 skills
Skill: Derive equations of motion graphicallyDerive kinematic equations using graphical method.
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Skill: Solve numerical problems using equations of motionCalculate unknown quantities using constant acceleration equations.
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Topic: Average Motion Values

2 skills
Skill: Calculate average velocity from graphCalculate average velocity using displacement and time or graphs.
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Skill: Calculate average acceleration from graphUse velocity-time data to calculate average acceleration.
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Skill: Define uniform circular motionExplain motion at constant speed on a circular path.
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Skill: Derive speed in uniform circular motionDerive speed using circumference and time period.
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Skill: Investigate motion using measurementsCollect motion data using simple instruments and represent it.
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Skill: Model real life motion eventsAnalyse variables affecting real-life motion and communicate conclusions.
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Chapter 10

Chapter 10: Force and Laws of Motion

Force, friction, balanced and unbalanced forces, Newton’s laws and their applications.

8 topics16 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Force Basics

3 skills
Skill: Explain force magnitude and directionDescribe force as a vector quantity with magnitude and direction.
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Skill: Identify balanced forcesRecognise situations where net force is zero.
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Skill: Identify unbalanced forcesRecognise situations where net force changes motion.
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Topic: Friction

1 skill
Skill: Explain role of friction in motionExplain how friction opposes or supports motion in daily life.
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Topic: Newton First Law

2 skills
Skill: State Newton first lawState the law of inertia accurately.
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Skill: Explain inertia in daily situationsUse everyday examples to explain inertia.
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Topic: Newton Second Law

3 skills
Skill: State Newton second lawExplain relation between force, mass and acceleration.
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Skill: Calculate force using second lawSolve numerical problems using F = ma.
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Skill: Define SI unit of forceDefine newton using mass and acceleration.
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Topic: Newton Third Law

2 skills
Skill: State Newton third lawState action and reaction force pairs accurately.
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Skill: Apply third law to real situationsExplain recoil, walking, swimming or similar examples.
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Topic: Applications of Laws

1 skill
Skill: Apply Newton laws to everyday eventsUse all three laws to explain common observations.
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Skill: Relate constant velocity to zero net forceExplain why constant velocity requires zero resultant force.
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Skill: Relate change in velocity to forceExplain acceleration as the result of unbalanced force.
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Skill: Model force and motion eventsDevelop simple models to manipulate force variables.
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Skill: Investigate variables in force experimentsPlan fair tests, collect data and communicate force investigation results.
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Chapter 11

Chapter 11: Work, Energy and Simple Machines

Work, power, work-energy theorem, kinetic and potential energy, conservation and mechanical advantage.

7 topics20 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Work and Power

4 skills
Skill: Define work done by constant forceDefine scientific work and its SI unit.
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Skill: Calculate work done by forceSolve problems using work done by a constant force.
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Skill: Define power and its unitExplain power as rate of doing work.
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Skill: Calculate powerSolve numerical problems using power expression.
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Topic: Energy Basics

2 skills
Skill: Explain energy and its SI unitDefine energy and recognise joule as SI unit.
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Skill: Identify forms and interconversion of energyIdentify energy forms and simple energy conversions nearby.
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Topic: Work Energy Theorem

1 skill
Skill: State work energy theoremState how work changes kinetic energy.
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Skill: Define kinetic energyExplain energy possessed by a moving object.
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Skill: Derive kinetic energy expressionDerive kinetic energy expression for a moving object.
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Skill: Calculate kinetic energySolve kinetic energy problems using given quantities.
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Skill: Define potential energy at heightExplain energy stored due to position above ground.
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Skill: Derive potential energy expressionDerive gravitational potential energy expression.
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Skill: Calculate potential energySolve potential energy problems using height and mass.
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Topic: Conservation of Energy

2 skills
Skill: Explain energy conversion in free fallExplain potential and kinetic energy conversion in falling objects.
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Skill: State law of conservation of energyState that energy changes form but total energy remains conserved.
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Topic: Simple Machines

3 skills
Skill: Identify levers pulleys and inclined planesRecognise common simple machines and their uses.
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Skill: Define mechanical advantageDefine mechanical advantage of a simple machine.
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Skill: Calculate mechanical advantageSolve simple mechanical advantage problems.
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Skill: Demonstrate mechanical advantageBuild or test a simple machine to show mechanical advantage.
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Skill: Model energy changes in real eventsDevelop models and communicate results for energy transformations.
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Chapter 12

Chapter 12: Sound

Sound production, propagation, wave characteristics, calculations, hearing, reflection, echo and applications.

9 topics18 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Sound Production

2 skills
Skill: Demonstrate sound production by vibrationShow that vibrating objects produce sound.
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Skill: Explain sound production in instrumentsExplain vibrations in strings, membranes and air columns.
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Topic: Sound Propagation

3 skills
Skill: Describe need of medium for soundExplain why sound requires a material medium.
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Skill: Demonstrate sound through different mediaCompare sound travel through air, solids and liquids.
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Skill: Explain sound as longitudinal waveDescribe compressions and rarefactions in sound waves.
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Topic: Wave Characteristics

3 skills
Skill: Describe wavelength frequency and time periodDefine key measurable properties of sound waves.
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Skill: Describe amplitude intensity and speedExplain wave properties linked with loudness and energy transfer.
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Skill: Analyse sound wave graphsInterpret graphical representations of sound waves.
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Topic: Sound Calculations

3 skills
Skill: Relate time period and frequencyUse reciprocal relationship between frequency and time period.
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Skill: Derive speed of sound expressionDerive speed using wavelength and frequency.
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Skill: Calculate speed of soundSolve sound speed problems using wave relation.
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Topic: Human Hearing

1 skill
Skill: Explain audible range loudness and pitchConnect hearing with frequency, amplitude, loudness and pitch.
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Topic: Reflection of Sound

2 skills
Skill: Explain reflection of soundDescribe how sound reflects from surfaces.
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Skill: Apply echo and reverberation conceptsExplain echo, reverberation and related surroundings.
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Topic: Sound Applications

1 skill
Skill: Explain echolocationExplain how organisms or devices use reflected sound to locate objects.
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Skill: Describe music using sound characteristicsConnect pitch, loudness and amplitude with music.
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Skill: Discuss Indian contributions to sound scienceDisplay awareness of Sir C.V. Raman and acoustic examples like Gol Gumbaz.
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Skill: Investigate sound variablesPlan simple investigations and represent sound observations with data.
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Practice options

Use worksheets and assignments to move from curriculum review into practice.

10 questionsLevel 3

Reproduction: Modes and Flower Basics

Start with sexual and asexual reproduction, then practise flower parts, pollination and fertilisation.

Preview assignment
10 questions

Atoms and Molecules: Laws That Explain Chemical Change

Build confidence with conservation of mass, constant proportions and Dalton atomic theory.

Preview assignment
12 questions

Force Starter: Push, Pull and Friction

Students practise force as a vector, balanced and unbalanced forces, and friction in everyday motion.

Preview assignment

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