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NCERT Solutions for Class 7 Science for all the exercises from Chapters 1 to 15 are provided here.

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Chapter 1

Nutrition In Plants

1.1: Mode of Nutrition In Plants

1.2: Photosynthesis — Food Making Process in Plants

1.3: Other Modes of Nutrition in Plants

1.4: Saprotrophs

1.5: How Nutrients are Replenished in The Soil.

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Chapter 4

Heat

4.1: Hot and Cold

4.2: Measuring Temperature

4.3: Laboratory Thermometer

4.4: Transfer of Heat

4.5: Kinds of Clothes We Wear in Summer and Winter.

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Chapter 7

Weather Climate And Adaptation Of Animals To Climate

7.1: Weather

7.2: Climate

7.3: Climate and Adaptation.

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Chapter 10

Respiration In Organisms

10.1: Why Do We Respire?

10.2: Breathing

10.3: How Do We Breathe?

10.4: What Do We Breathe Out?

10.5: Breathing in Other Animals

10.6: Breathing Under Water

10.7: Do Plants Also Respire?

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Chapter 13

Motion And Time

13.1: Slow or Fast

13.2: Speed

13.3: Measurement of Time

13.4: Measuring Speed

13.5: Distance-Time Graph.

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Chapter 16

Water: A Precious Resource

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16.1: How Much Water Is Available

16.2: Forms of Water

16.3: Groundwater as An Important Source of Water

16.4: Depletion of Water Table

16.5: Distribution of Water

16.6: Water Management

16.7: What Role You Can Play

16.8: Effect of Water Scarcity on Plants.

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Chapter 2

Nutrition In Animals

2.1: Different Ways of Taking Food

2.2: Digestion in Humans

2.3: Digestion in Grass-Eating Animals

2.4: Feeding and Digestion In Amoeba.

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Chapter 5

Acids, Bases, And Salts

5.1: Acids and Bases

5.2: Natural Indicators Around Us

5.3: Neutralisation

5.4: Neutralisations in Everyday Life.

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Chapter 8

Winds, Storms, And Cyclones

8.1: Air Exerts Pressure

8.2: High-Speed Winds Are Accompanied by Reduced Air Pressure

8.3: Air Expands on Heating

8.4: Wind Currents Are Generated Due to Uneven Heating on The Earth

8.5: Thunderstorms and Cyclones

8.6: Destruction Caused by Cyclones

8.7: Effective Safety Measures

8.8: Advanced Technology Has Helped

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Chapter 11

Transportation In Animals And Plants

11.1: Circulatory System

11.2: Excretion in Animals

11.3: Transport of Substances in Plants

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Chapter 14

Electric Current And Its Effects

14.1: Symbols of Electric Components

14.2: Heating Effect of Electric Current

14.3: Magnetic Effect of Electric Current

14.4: Electromagnet

14.5: Electric Bell.

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Chapter 17

Forest: Our Lifeline

17.1: Visit a Forest

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Chapter 3

Fibre To Fabric

3.1: Wool

3.2: Silk.

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Chapter 6

Physical And Chemical Changes

6.1: Physical Changes

6.2: Chemical Change

6.3: Rusting of Iron

6.4: Crystallization.

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Chapter 9

Soil

9.1: Soil Teeming with Life

9.2: Soil Profile

9.3: Soil Types

9.4: Properties of Soil

9.5: Moisture in Soil

9.6: Absorption of Water by Soil

9.7: Soil and Crops.

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Chapter 12

Reproduction In Plants

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12.1: Modes of Reproduction

12.2: Sexual Reproduction

12.3: Fruits and Seed Formation

12.4: Seed Dispersal.

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Chapter 15

Light

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15.1: Light Travels Along A Straight Line

15.2: Reflection of Light

15.3: Right or Left!

15.4: Playing with Spherical Mirrors

15.5: Images Formed by Lenses

15.6: Sunlight — White Or Coloured?.

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Chapter 18

Waste Water Story

18.1: Water, Our Lifeline

18.2: What Is Sewage?

18.3: Water Freshens Up – An Eventful Journey

18.4: Wastewater Treatment Plant

18.5: Better House Keeping Practices

18.6: Sanitation and Disease

18.7: Alternative Arrangement for Sewage Disposal

18.8: Sanitation at Public Places.