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NCERT Solutions for Class 8 Science for all the exercises from Chapters 1 to 15 are provided here.
Crop Production and Management
1.1: Agricultural Practices
1.2: Basic Practices of Crop Production
1.3: Preparation of Soil
1.5 Adding Manure and Fertilizers
1.7: Protection from Weeds
1.10: Food from Animals
Conservation of Plants and Animals
7.1: Deforestation and Its Causes
7.2: Consequences of Deforestation
7.3: Conservation of Forest and Wildlife
7.4: Biosphere Reserve
7.5: Flora and Fauna
7.6: Endemic Species
7.7: Wildlife Sanctuary
7.8: National Park
7.9: Red Data Book
7.11: Recycling of Paper
Reaching the Age of Adolescence
10.1: Adolescence and Puberty
10.2: Changes at Puberty
10.3: Secondary Sexual Characters
10.4: Role of Hormones in Initiating Reproductive Function
10.5: Reproductive Phase of Life in Humans
10.6: How is the Sex of the Baby Determined?
10.7: Hormones other than Sex Hormones
10.8: Role of Hormones in Completing the Life History of Insects and Frogs
10.9: Reproductive Health
13.1: Sound is Produced by Vibrating Bodies
13.2: Sound Produced by Humans
13.3: Sounds Needs a Medium for Propagation
13.4: We Hear Sound through Our Ears
13.5: Aptitude, Time Period and Frequency of a vibration
13.6: Audible and Inaudible Sounds
13.7: Noise and Music
13.8: Noise Pollution
16.1: What makes Things Visible
16.2: Laws of Reflection
16.3: Regular and Diffused Reflection
16.4: Reflected Light Can be Reflected Again
16.5: Multiple Images
16.6: Sunlight – White or Coloured
16.7: What is inside Our Eyes?
16.8: Care of the Eyes
16.9: Visually Impaired Persons Can Read and Write
16.10: What is Braille System?
Microorganisms – Friend and Foe
2.2: Where do Microorganisms Live?
2.3: Microorganisms and Us
2.4: Harmful Microorganisms
2.5: Food Preservation
2.6: Nitrogen Fixation
2.7: Nitrogen cycle
Cell – Structure and Functions
8.1: Discovery of the Cell
8.2: The Cell
8.3: Organisms show Variety in Cell Number, Shape and Size
8.4: Cell Structure and Function
8.5: Parts of the Cell
8.6: Comparison of Plants and Animals Cells
Force and Pressure
11.1: Force: A push or a Pull
11.2: Forces are due to an Interaction
11.3: Exploring Forces
11.4: A Force can Change the State of Motion
11.5: Force can Change the Shape of an object
11.6: Contact Forces
11.7: Non-contact Forces
11.9: Pressure Exerted by Liquids and Gases
11.10: Atmospheric Pressure
Synthetic Fibres and Plastics
3.1: What are Synthetic Fibres?
3.2: Types of Synthetic Fibres
3.3: Characteristics of Synthetic Fibres
3.5: Plastics as Materials of Choice
3.6: Plastics and the Environment
12.1: Force of Friction
12.2: Factors affecting Friction
12.3: Friction: A Necessary Evil
12.4: Increasing and Reducing Friction
12.5: Wheels Reduce Friction
12.6: Fluid Friction
Some Natural Phenomena
15.2: Charging by Rubbing
15.3: Types of Charges and Their Interaction
15.4: Transfer of Charge
15.5: The Story of Lightning
15.6: Lightning Safety
Pollution of Air and Water
18.1: Air Pollution
18.2: How does Air Get Polluted?
18.3: Case Study- The Taj Mahal
18.4: Greenhouse Effect
18.5: What can be done?
18.6: Water Pollution
18.7: How does Water Get Polluted?
18.8: What is Potable Water and How is Water Purified?
18.9: What Can be Done?