Grade-wise curriculum

CBSE Grade 7 Science Curriculum and Practice

Chapter-wise Grade 7 Science practice aligned to the CBSE curriculum. Explore topics, skills, worksheets, and assignments for Nutrition in Plants, Nutrition in Animals, Fibre to Fabric, Heat, Acids, Bases and Salts, and Physical and Chemical Changes, and more.

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

Recommended starting points

Good places to begin.

1Nutrition in Plants

Understanding how plants prepare and obtain food.

2Nutrition in Animals

Understanding digestion and nutrition in animals.

3Fibre to Fabric

Understanding processing of fibres into fabrics.

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: Nutrition in Plants

Understanding how plants prepare and obtain food.

7 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Modes of Nutrition in Plants

1 skill

Skill: Distinguish autotrophic and heterotrophic nutrition in plantsIdentify how green plants make food and how some plants depend on other sources for nutrition.

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Topic: Photosynthesis

2 skills

Skill: Explain the role of sunlight, chlorophyll, carbon dioxide and water in photosynthesisUse the photosynthesis idea to explain why leaves, light, air and water are important for plant food making.

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Skill: Interpret the word equation for photosynthesisConnect carbon dioxide, water, sunlight and chlorophyll with glucose and oxygen in the photosynthesis process.

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Topic: Leaf Structure and Function

1 skill

Skill: Relate leaf parts to photosynthesisExplain how stomata, chlorophyll and leaf surfaces help plants prepare food.

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Topic: Mineral Nutrition

1 skill

Skill: Explain why plants need minerals and how soil nutrients are replenishedIdentify the role of minerals, manure, fertilizers and natural nutrient recycling in plant growth.

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Topic: Symbiotic Nutrition

1 skill

Skill: Describe symbiosis using lichens and Rhizobium examplesExplain how two organisms can benefit each other in obtaining nutrition.

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Topic: Parasitic and Insectivorous Plants

1 skill

Skill: Compare parasitic and insectivorous plantsDifferentiate Cuscuta and pitcher plant type nutrition using evidence from examples.

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Topic: Application and Reasoning

1 skill

Skill: Apply plant nutrition concepts to real-life plant growth situationsSolve questions about yellow leaves, low light, poor soil and plant growth using nutrition concepts.

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Chapter 2

Chapter 2: Nutrition in Animals

Understanding digestion and nutrition in animals.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Food and Feeding

1 skill

Skill: Identify modes of food intake in different animalsCompare chewing, sucking, filtering, scraping and swallowing food across animals.

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Topic: Human Digestive System

1 skill

Skill: Sequence the organs of the human digestive tractTrace food from mouth to anus and identify the main function of each digestive organ.

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Topic: Digestion in Mouth and Stomach

1 skill

Skill: Explain digestion in the mouth and stomachDescribe chewing, saliva, tongue action, oesophagus movement and stomach digestion.

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Topic: Small Intestine and Absorption

1 skill

Skill: Explain digestion and absorption in the small intestineConnect bile, pancreatic juice, intestinal juice, villi and blood absorption with digestion.

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Topic: Large Intestine and Egestion

1 skill

Skill: Distinguish absorption of water and egestion of wasteExplain how undigested food becomes faeces and leaves the body.

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Topic: Ruminants

1 skill

Skill: Explain rumination in grass-eating animalsDescribe cud chewing, rumen microbes and cellulose digestion in cattle and similar animals.

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Topic: Amoeba Nutrition

1 skill

Skill: Describe feeding and digestion in AmoebaExplain pseudopodia, food vacuole digestion and removal of undigested food.

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Topic: Health and Application

1 skill

Skill: Apply digestion concepts to food habits and healthUse digestion knowledge to reason about balanced meals, chewing, fibre and digestive problems.

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Chapter 3

Chapter 3: Fibre to Fabric

Understanding processing of fibres into fabrics.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Animal Fibres

1 skill

Skill: Classify wool and silk as animal fibresIdentify wool and silk sources and distinguish animal fibres from plant and synthetic fibres.

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Topic: Wool Sources

1 skill

Skill: Identify animals that yield wool and their wool-bearing regionsConnect sheep, yak, goat, camel and other animals with wool production.

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Topic: Processing Wool

1 skill

Skill: Sequence the steps from fleece to woollen fabricOrder shearing, scouring, sorting, burr removal, dyeing, spinning and weaving/knitting.

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Topic: Silk Sources

1 skill

Skill: Explain the life cycle of silk moth in silk productionConnect egg, larva, cocoon and adult stages with silk fibre formation.

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Topic: Processing Silk

1 skill

Skill: Sequence the steps from cocoon to silk fabricExplain rearing silkworms, collecting cocoons, reeling silk and weaving silk cloth.

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Topic: Fibre Properties

1 skill

Skill: Compare wool and silk properties and usesUse fibre properties to explain clothing choices in winter, ceremonies and daily life.

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Topic: Health and Ethics

1 skill

Skill: Recognize occupational hazards and ethical issues in fibre productionIdentify risks such as sorter disease and discuss safe, responsible fibre processing.

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Topic: Application and Reasoning

1 skill

Skill: Choose suitable fibres for different needsApply knowledge of warmth, strength, texture and absorbency to fabric selection.

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Chapter 4

Chapter 4: Heat

Understanding temperature and heat transfer.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Temperature and Thermometers

1 skill

Skill: Distinguish heat and temperatureIdentify temperature as a measure of hotness and use thermometers correctly.

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Topic: Clinical and Laboratory Thermometers

1 skill

Skill: Compare clinical and laboratory thermometersExplain range, use, precautions and reading methods for common thermometers.

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Topic: Transfer of Heat

1 skill

Skill: Explain conduction, convection and radiationIdentify heat transfer method from daily-life situations and simple experiments.

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Topic: Conductors and Insulators

1 skill

Skill: Classify materials as conductors or insulators of heatUse material properties to explain handles, cooking vessels, woollens and thermos flasks.

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Topic: Sea Breeze and Land Breeze

1 skill

Skill: Explain convection in winds near land and seaUse heating and cooling of land and water to explain local winds.

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Topic: Clothing and Heat

1 skill

Skill: Explain how clothes affect heat transferReason why wool, cotton, layers and light/dark colours are used in different weather.

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Topic: Reading Data

1 skill

Skill: Interpret temperature readings and simple heat observationsRead thermometer values and compare changes in temperature from observations.

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Topic: Application and Reasoning

1 skill

Skill: Solve everyday heat-transfer problemsApply heat transfer ideas to cooking, insulation, weather, clothing and safety situations.

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Chapter 5

Chapter 5: Acids, Bases and Salts

Understanding properties of acids bases and salts.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Acids and Bases

1 skill

Skill: Identify acidic, basic and neutral substancesClassify common substances such as lemon juice, soap solution and water using properties.

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Topic: Indicators

1 skill

Skill: Explain how indicators detect acids and basesUse litmus, turmeric, china rose and phenolphthalein observations to identify substances.

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Topic: Litmus Tests

1 skill

Skill: Interpret colour changes of red and blue litmusInfer whether a solution is acidic, basic or neutral from litmus colour changes.

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Topic: Neutralisation

1 skill

Skill: Explain neutralisation as acid-base reaction forming salt and waterRecognize neutralisation examples and identify acid, base, salt and water products.

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Topic: Everyday Neutralisation

1 skill

Skill: Apply neutralisation in daily lifeExplain antacids, soil treatment, ant stings and factory waste treatment using neutralisation.

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Topic: Salts

1 skill

Skill: Recognize salts as products of acid-base reactionsIdentify examples of salts and connect them to neutralisation.

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Topic: Safe Handling

1 skill

Skill: Use safety rules for acids and basesIdentify precautions needed while testing or using acidic and basic substances.

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Topic: Application and Reasoning

1 skill

Skill: Analyze indicator experiments and conclusionsUse test results to compare unknown solutions and justify conclusions.

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Chapter 6

Chapter 6: Physical and Chemical Changes

Understanding types of changes.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Types of Changes

1 skill

Skill: Distinguish physical and chemical changesClassify changes by reversibility, new substance formation and property changes.

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Topic: Physical Changes

1 skill

Skill: Identify changes in shape, size, state and appearanceExplain cutting, melting, freezing, dissolving and stretching as physical changes where appropriate.

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Topic: Chemical Changes

1 skill

Skill: Identify signs of chemical changeUse colour change, gas formation, heat/light, precipitate or new substance formation as evidence.

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Topic: Rusting

1 skill

Skill: Explain rusting of iron and conditions neededConnect oxygen, water, iron and prevention methods such as painting, oiling and galvanisation.

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Topic: Crystallisation

1 skill

Skill: Describe crystallisation as a method of obtaining pure crystalsExplain how crystals form from solutions and why crystallisation is useful.

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Topic: Burning and Reactions

1 skill

Skill: Classify burning and cooking as chemical changesUse evidence to explain why burning and cooking often produce new substances.

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Topic: Reversible and Irreversible

1 skill

Skill: Compare reversible/irreversible changes with physical/chemical changesAvoid common misconceptions by separating reversibility from new substance formation.

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Topic: Application and Reasoning

1 skill

Skill: Justify classification of unfamiliar changesAnalyze observations and decide whether a change is physical, chemical or both.

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Chapter 7

Chapter 7: Weather, Climate and Adaptations of Animals to Climate

Understanding weather climate and adaptations.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Weather Elements

1 skill

Skill: Identify elements of weatherDescribe temperature, humidity, rainfall, wind and cloudiness as parts of weather.

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Topic: Weather Records

1 skill

Skill: Interpret weather data and daily weather reportsUse tables and graphs of temperature or rainfall to describe weather patterns.

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Topic: Weather and Climate

1 skill

Skill: Distinguish weather from climateCompare short-term weather with long-term climate using examples.

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Topic: Climate Zones

1 skill

Skill: Describe hot, cold, wet and dry climatesRelate climate conditions to typical environments and animal needs.

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Topic: Polar Adaptations

1 skill

Skill: Explain adaptations of polar animalsUse features such as fat, fur, colour and body shape to explain survival in cold climates.

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Topic: Tropical Adaptations

1 skill

Skill: Explain adaptations of tropical rainforest animalsConnect camouflage, climbing, diet and body parts with survival in warm, wet forests.

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Topic: Migration and Behaviour

1 skill

Skill: Recognize behavioural adaptations to climateExplain migration, hibernation, activity timing and sheltering as climate responses.

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Topic: Application and Reasoning

1 skill

Skill: Predict adaptations from climate conditionsUse climate clues to infer suitable animal features and survival strategies.

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Chapter 8

Chapter 8: Winds Storms and Cyclones

Understanding atmospheric phenomena.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Air and Pressure

1 skill

Skill: Explain air pressure and its effectsUse examples to show that moving and still air exert pressure.

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Topic: Wind Formation

1 skill

Skill: Explain how uneven heating creates windsConnect warm air rising, cool air sinking and pressure differences with wind movement.

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Topic: Monsoon and Local Winds

1 skill

Skill: Relate land-water heating to seasonal and local windsExplain sea breeze, land breeze and monsoon-like wind patterns using pressure differences.

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Topic: Thunderstorms

1 skill

Skill: Describe formation of thunderstormsIdentify conditions leading to thunderstorms and safety steps during lightning.

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Topic: Cyclones

1 skill

Skill: Explain cyclone formation and structure at a basic levelConnect warm ocean water, rising air, low pressure and rotating winds to cyclones.

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Topic: Disaster Safety

1 skill

Skill: Apply safety measures for storms and cyclonesChoose safe actions before, during and after storms, thunderstorms and cyclones.

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Topic: Technology and Warning

1 skill

Skill: Describe role of weather forecasting and warning systemsExplain how satellites, radars and warnings reduce storm damage.

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Topic: Application and Reasoning

1 skill

Skill: Analyze wind and storm situations using pressure conceptsUse air pressure and heating ideas to explain practical wind and storm observations.

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Chapter 9

Chapter 9: Soil

Understanding soil types and properties.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Soil Formation

1 skill

Skill: Explain weathering and soil formationDescribe how rocks break down and organic matter helps form soil over time.

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Topic: Soil Profile

1 skill

Skill: Identify layers of soil profileRecognize topsoil, subsoil, parent material and bedrock with their features.

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Topic: Soil Types

1 skill

Skill: Compare sandy, clayey and loamy soilsUse particle size, water holding and air spaces to compare soil types.

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Topic: Soil Properties

1 skill

Skill: Measure or infer percolation and water retentionCalculate or compare percolation rate and water holding capacity from data.

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Topic: Soil and Crops

1 skill

Skill: Match soil type with suitable cropsExplain why different crops grow better in different soils.

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Topic: Soil Erosion

1 skill

Skill: Explain causes and prevention of soil erosionIdentify deforestation, wind, water and farming practices that affect soil erosion.

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Topic: Soil Organisms

1 skill

Skill: Describe role of soil organisms and humusExplain how earthworms, microbes and humus improve soil fertility.

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Topic: Application and Reasoning

1 skill

Skill: Use soil data to make farming or conservation decisionsInterpret soil observations to choose crops, irrigation or conservation methods.

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Chapter 10

Chapter 10: Respiration in Organisms

Understanding respiration process.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Respiration Basics

1 skill

Skill: Distinguish breathing and cellular respirationExplain how breathing supports cellular respiration but is not the same process.

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Topic: Aerobic Respiration

1 skill

Skill: Explain aerobic respiration and energy releaseConnect glucose, oxygen, carbon dioxide, water and energy in respiration.

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Topic: Anaerobic Respiration

1 skill

Skill: Explain anaerobic respiration in muscles and yeastDescribe energy release without oxygen and identify products such as lactic acid or alcohol.

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Topic: Human Respiratory System

1 skill

Skill: Trace air path in the human respiratory systemIdentify nostrils, trachea, bronchi, lungs, diaphragm and alveoli functions.

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Topic: Breathing Rate

1 skill

Skill: Interpret breathing rate changes during activityExplain why breathing becomes faster during running or exercise.

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Topic: Respiration in Animals

1 skill

Skill: Compare respiratory organs across animalsIdentify lungs, gills, spiracles, skin and other respiratory structures.

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Topic: Respiration in Plants

1 skill

Skill: Explain gas exchange in plantsDescribe how plants exchange gases through stomata, roots and other surfaces.

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Topic: Application and Reasoning

1 skill

Skill: Analyze respiration examples and experimentsUse observations like lime water, yeast activity or exercise data to infer respiration.

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Chapter 11

Chapter 11: Transportation in Animals and Plants

Understanding transport systems.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Circulatory System

1 skill

Skill: Identify components of blood and their functionsDescribe plasma, red blood cells, white blood cells and platelets.

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Topic: Heart and Blood Vessels

1 skill

Skill: Explain the role of heart, arteries, veins and capillariesTrace blood flow and distinguish different blood vessels by function.

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Topic: Pulse and Heartbeat

1 skill

Skill: Relate pulse to heartbeat and activityInterpret pulse changes and connect them to oxygen and nutrient transport.

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Topic: Excretion in Humans

1 skill

Skill: Explain removal of waste by kidneys and urinary systemIdentify kidneys, ureters, bladder and urethra and explain urine formation at a basic level.

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Topic: Transport in Plants

1 skill

Skill: Explain movement of water and minerals in plantsDescribe root absorption and upward movement through xylem.

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Topic: Food Transport in Plants

1 skill

Skill: Explain transport of food through phloemConnect photosynthesis in leaves with food movement to other plant parts.

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Topic: Transpiration

1 skill

Skill: Explain transpiration and its role in plantsDescribe water loss through leaves and how it helps water movement.

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Topic: Application and Reasoning

1 skill

Skill: Apply transport concepts to body and plant situationsSolve questions about blocked vessels, wilting, pulse change or plant water movement.

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Chapter 12

Chapter 12: Reproduction in Plants

Understanding plant reproduction.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Modes of Reproduction

1 skill

Skill: Compare sexual and asexual reproduction in plantsIdentify which plant reproduction method is shown in examples.

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Topic: Asexual Reproduction

1 skill

Skill: Describe vegetative propagation, budding, fragmentation and spore formationCompare common asexual methods using potato, Bryophyllum, yeast, algae and fungi examples.

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Topic: Flower Structure

1 skill

Skill: Identify reproductive parts of a flowerRecognize sepals, petals, stamens, pistil, ovary, ovules, anther and stigma.

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Topic: Pollination

1 skill

Skill: Distinguish self-pollination and cross-pollinationExplain transfer of pollen and identify agents such as wind, water and insects.

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Topic: Fertilisation and Seed Formation

1 skill

Skill: Explain fertilisation leading to seeds and fruitsConnect pollen tube, ovule, ovary, seed and fruit formation.

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Topic: Seed Dispersal

1 skill

Skill: Explain methods and advantages of seed dispersalIdentify dispersal by wind, water, animals and bursting using examples.

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Topic: Germination

1 skill

Skill: Describe conditions needed for seed germinationExplain the need for water, air and suitable temperature in germination.

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Topic: Application and Reasoning

1 skill

Skill: Analyze plant reproduction examples and life cyclesUse plant features to infer reproduction method, pollination agent or dispersal method.

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Chapter 13

Chapter 13: Motion and Time

Understanding motion and measurement of time.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Motion Basics

1 skill

Skill: Distinguish slow and fast motion using distance and timeUse distance and time to decide which object is faster.

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Topic: Speed

1 skill

Skill: Calculate speed, distance or time using the speed relationSolve grade-appropriate numerical problems using speed = distance/time.

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Topic: Units of Speed

1 skill

Skill: Convert and compare common speed unitsUse m/s and km/h correctly and compare speeds in simple situations.

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Topic: Measuring Time

1 skill

Skill: Explain measurement of time using periodic eventsDescribe clocks, stopwatches, pendulums and periodic motion as time measures.

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Topic: Simple Pendulum

1 skill

Skill: Identify time period and factors in pendulum observationsUse pendulum swings to understand periodic motion and time period.

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Topic: Distance-Time Graphs

1 skill

Skill: Interpret distance-time graphs for uniform and non-uniform motionUse graph shape and slope to infer rest, faster motion and slower motion.

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Topic: Uniform and Non-uniform Motion

1 skill

Skill: Distinguish uniform and non-uniform motionClassify motion based on whether speed remains constant or changes.

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Topic: Application and Reasoning

1 skill

Skill: Apply motion concepts to travel and graph problemsSolve travel, race and graph interpretation questions using motion concepts.

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Chapter 14

Chapter 14: Electric Current and Its Effects

Understanding electric circuits and effects.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Electric Circuits

1 skill

Skill: Identify components of a simple electric circuitRecognize cell, wire, bulb, switch and closed/open circuits.

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Topic: Circuit Diagrams

1 skill

Skill: Use symbols to draw and interpret circuit diagramsRead and construct simple circuit diagrams using standard symbols.

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Topic: Heating Effect

1 skill

Skill: Explain the heating effect of electric currentConnect current flow with heat production in devices such as heaters, irons and fuses.

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Topic: Fuses and Safety

1 skill

Skill: Explain how fuses and MCBs protect circuitsIdentify overload, short circuit, fuse wire melting and safety precautions.

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Topic: Magnetic Effect

1 skill

Skill: Explain the magnetic effect of electric currentDescribe how current-carrying wires can act like magnets.

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Topic: Electromagnets

1 skill

Skill: Describe construction and uses of electromagnetsExplain how coils, iron cores and current make temporary magnets.

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Topic: Electric Bell

1 skill

Skill: Explain working of an electric bellSequence electromagnet, armature, hammer and contact break in an electric bell.

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Topic: Application and Reasoning

1 skill

Skill: Analyze circuit behaviour and effects of currentPredict whether bulbs glow, wires heat or electromagnets work in circuit examples.

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Chapter 15

Chapter 15: Light

Understanding reflection and light behavior.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Light Travels

1 skill

Skill: Explain rectilinear propagation of lightUse shadows, beams and pinhole ideas to explain straight-line travel of light.

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Topic: Reflection

1 skill

Skill: State and apply basic reflection ideasIdentify incident ray, reflected ray, normal and angle of reflection in simple cases.

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Topic: Plane Mirrors

1 skill

Skill: Describe image formation by plane mirrorsRecognize virtual, erect, same-size and laterally inverted images.

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Topic: Spherical Mirrors

1 skill

Skill: Compare concave and convex mirrorsIdentify mirror type from shape, image behaviour and common uses.

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Topic: Lenses

1 skill

Skill: Compare convex and concave lensesRelate lens shape to converging/diverging light and image examples.

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Topic: Dispersion and Colours

1 skill

Skill: Explain splitting of white light into coloursDescribe rainbow/dispersion and identify the seven colours of white light.

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Topic: Uses of Mirrors and Lenses

1 skill

Skill: Choose mirrors or lenses for applicationsMatch mirrors and lenses with uses in vehicles, spectacles, magnifiers and torches.

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Topic: Application and Reasoning

1 skill

Skill: Analyze image and light-path situationsUse mirror/lens properties to solve daily-life and diagram-based light questions.

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Chapter 16

Chapter 16: Water: A Precious Resource

Understanding importance and conservation of water.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Water Availability

1 skill

Skill: Explain why freshwater is limitedDistinguish total water, freshwater and usable water on Earth.

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Topic: Water Cycle

1 skill

Skill: Describe the water cycle and groundwater rechargeExplain evaporation, condensation, precipitation, infiltration and groundwater formation.

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Topic: Groundwater

1 skill

Skill: Explain water table and aquifersRelate wells, handpumps, tube wells and aquifers to groundwater.

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Topic: Water Scarcity

1 skill

Skill: Identify causes of water scarcityConnect overuse, population, pollution, deforestation and low rainfall with scarcity.

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Topic: Conservation

1 skill

Skill: Apply methods of water conservationChoose practical water-saving methods at home, school, farms and communities.

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Topic: Rainwater Harvesting

1 skill

Skill: Explain rainwater harvesting and rechargeDescribe rooftop collection, recharge pits and storage as conservation methods.

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Topic: Water Management

1 skill

Skill: Analyze responsible use of water resourcesCompare choices that waste or conserve water and predict long-term effects.

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Topic: Application and Reasoning

1 skill

Skill: Use water data or situations to make conservation decisionsInterpret water-use scenarios and recommend sustainable actions.

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Chapter 17

Chapter 17: Forests: Our Lifeline

Understanding forest ecosystem.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Forest Layers

1 skill

Skill: Identify layers and components of a forestRecognize canopy, understory, shrubs, herbs, forest floor and decomposers.

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Topic: Food Chains and Webs

1 skill

Skill: Construct simple forest food chainsIdentify producers, consumers and decomposers in forest ecosystems.

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Topic: Interdependence

1 skill

Skill: Explain interdependence among forest organismsDescribe how plants, animals, microbes and soil depend on one another.

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Topic: Decomposition and Nutrient Cycling

1 skill

Skill: Explain role of decomposers in forestsConnect dead matter, decomposers, humus and soil fertility.

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Topic: Forests and Environment

1 skill

Skill: Explain how forests affect air, water and soilRelate forests to oxygen, rainfall, groundwater, soil protection and climate moderation.

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Topic: Deforestation

1 skill

Skill: Identify effects of deforestationExplain erosion, floods, habitat loss, climate effects and biodiversity loss.

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Topic: Conservation

1 skill

Skill: Suggest methods to protect forestsChoose responsible actions such as afforestation, reducing waste and protecting habitats.

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Topic: Application and Reasoning

1 skill

Skill: Analyze forest ecosystem changesPredict effects of removing one organism or cutting trees in a forest system.

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Chapter 18

Chapter 18: Wastewater Story

Understanding wastewater management.

8 topics8 skillsWorksheets available

Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in

Topic: Wastewater Sources

1 skill

Skill: Identify sources and pollutants in wastewaterRecognize sewage sources and pollutants such as soap, oils, food waste and pathogens.

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Topic: Sewage System

1 skill

Skill: Describe drainage and sewerage systemsTrace wastewater from homes through drains and sewers to treatment plants.

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Topic: Wastewater Treatment

1 skill

Skill: Sequence wastewater treatment stepsExplain screening, grit removal, sedimentation, aeration, sludge removal and disinfection.

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Topic: Sludge and Biogas

1 skill

Skill: Explain treatment and use of sludgeDescribe sludge digestion, manure formation and biogas production.

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Topic: Sanitation and Health

1 skill

Skill: Connect sanitation with disease preventionExplain why toilets, clean drains and safe disposal reduce disease spread.

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Topic: Responsible Disposal

1 skill

Skill: Identify what should not enter drainsChoose safe disposal methods for oils, medicines, plastics and chemicals.

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Topic: Alternative Sanitation

1 skill

Skill: Describe low-cost sanitation optionsExplain septic tanks, composting toilets and on-site sanitation at a basic level.

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Topic: Application and Reasoning

1 skill

Skill: Analyze wastewater treatment and sanitation scenariosUse treatment-step and sanitation knowledge to solve real-life pollution and health questions.

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Practice options

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

10 questions

Light: Practice 001

Progressive practice for Light, focused on a small cluster of related Grade 7 Science skills.

Preview assignment

10 questions

Reproduction in Plants: Practice 1

Progressive practice for Reproduction in Plants with concept checks, application and reasoning questions.

Preview assignment

10 questions

Weather and Climate: Read the Signs

Practice weather elements, weather data and the difference between weather and climate.

Preview assignment

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