Embedded Files
📢 Confused About Courses or Career? Talk to Our Experts
Class 3 Science Complete Notes
Class 3 Science Complete Notes
---
---
Chapter 1: Plants Around Us
Chapter 1: Plants Around Us
(Already explained above)
(Already explained above)
Parts of plants: Root, Stem, Leaves, Flower, Fruit
Parts of plants: Root, Stem, Leaves, Flower, Fruit
Types of plants: Herbs, Shrubs, Trees
Types of plants: Herbs, Shrubs, Trees
Uses of plants: Food, Clothes, Medicines, Oxygen, Shelter
Uses of plants: Food, Clothes, Medicines, Oxygen, Shelter
Plants need sunlight, water, air, and soil to grow
Plants need sunlight, water, air, and soil to grow
Activity: Draw parts of a plant and label them.
Activity: Draw parts of a plant and label them.
---
---
Chapter 2: Animals Around Us
Chapter 2: Animals Around Us
1. Introduction
1. Introduction
Animals are living beings. They move, eat, breathe, and reproduce. Animals are found everywhere – land, water, and air.
Animals are living beings. They move, eat, breathe, and reproduce. Animals are found everywhere – land, water, and air.
2. Types of Animals
2. Types of Animals
1. Domestic Animals – Help humans (cow, dog, goat).
1. Domestic Animals – Help humans (cow, dog, goat).
2. Wild Animals – Live in forests (tiger, lion, elephant).
2. Wild Animals – Live in forests (tiger, lion, elephant).
3. Water Animals – Live in water (fish, dolphin, crab).
3. Water Animals – Live in water (fish, dolphin, crab).
4. Birds – Can fly (sparrow, parrot, eagle).
4. Birds – Can fly (sparrow, parrot, eagle).
3. Animal Food
3. Animal Food
Herbivores – Eat plants (cow, deer).
Herbivores – Eat plants (cow, deer).
Carnivores – Eat other animals (tiger, lion).
Carnivores – Eat other animals (tiger, lion).
Omnivores – Eat plants and animals (bear, crow).
Omnivores – Eat plants and animals (bear, crow).
4. Animal Homes
4. Animal Homes
Cow → Cow-shed
Cow → Cow-shed
Birds → Nest
Birds → Nest
Bee → Hive
Bee → Hive
Fish → Water/pond
Fish → Water/pond
Activity: Observe an animal and write its food and home.
Activity: Observe an animal and write its food and home.
---
---
Chapter 3: The Human Body
Chapter 3: The Human Body
1. Parts of the Body
1. Parts of the Body
Head, Neck, Arms, Hands, Legs, Feet, Trunk
Head, Neck, Arms, Hands, Legs, Feet, Trunk
2. Five Senses
2. Five Senses
1. Sight – Eyes
1. Sight – Eyes
2. Hearing – Ears
2. Hearing – Ears
3. Taste – Tongue
3. Taste – Tongue
4. Smell – Nose
4. Smell – Nose
5. Touch – Skin
5. Touch – Skin
3. Organs and Functions
3. Organs and Functions
Heart – Pumps blood
Heart – Pumps blood
Lungs – Help in breathing
Lungs – Help in breathing
Stomach – Digests food
Stomach – Digests food
Brain – Controls body
Brain – Controls body
4. Healthy Habits
4. Healthy Habits
Eat nutritious food
Eat nutritious food
Exercise regularly
Exercise regularly
Brush teeth twice a day
Brush teeth twice a day
Wash hands before meals
Wash hands before meals
Activity: Make a chart of your five senses and organs.
Activity: Make a chart of your five senses and organs.
---
---
Chapter 4: Food and Nutrition
Chapter 4: Food and Nutrition
Food gives energy for work and growth.
Food gives energy for work and growth.
Types of food: Carbohydrates, Proteins, Fats, Vitamins, Minerals, Water
Types of food: Carbohydrates, Proteins, Fats, Vitamins, Minerals, Water
Balanced diet: Includes all food types in right amounts
Balanced diet: Includes all food types in right amounts
Junk food is harmful
Junk food is harmful
Activity: Make a plate showing balanced diet.
Activity: Make a plate showing balanced diet.
---
---
Chapter 5: Water
Chapter 5: Water
Water is essential for life
Water is essential for life
Sources: Rivers, Lakes, Wells, Rain
Sources: Rivers, Lakes, Wells, Rain
Uses: Drinking, Cooking, Cleaning, Farming
Uses: Drinking, Cooking, Cleaning, Farming
Water can exist in three forms: Solid (ice), Liquid (water), Gas (steam)
Water can exist in three forms: Solid (ice), Liquid (water), Gas (steam)
Conserving water: Don’t waste, fix leaks, rainwater harvesting
Conserving water: Don’t waste, fix leaks, rainwater harvesting
Activity: Observe water in three forms at home.
Activity: Observe water in three forms at home.
---
---
Chapter 6: Air Around Us
Chapter 6: Air Around Us
Air is all around us, invisible but necessary
Air is all around us, invisible but necessary
Uses: Breathing, Flying, Burning
Uses: Breathing, Flying, Burning
Air takes space and has weight
Air takes space and has weight
Wind is moving air
Wind is moving air
Air pollution: Smoke, dust, chemicals harm air quality
Air pollution: Smoke, dust, chemicals harm air quality
Activity: Blow a balloon and see how air fills it.
Activity: Blow a balloon and see how air fills it.
---
---
Chapter 7: The Earth and the Sky
Chapter 7: The Earth and the Sky
Earth is our home
Earth is our home
Land, water, and air form our environment
Land, water, and air form our environment
Sky looks blue due to sunlight scattering
Sky looks blue due to sunlight scattering
Sun is a star that gives light and heat
Sun is a star that gives light and heat
Day and Night: Earth’s rotation causes it
Day and Night: Earth’s rotation causes it
Activity: Observe sunrise and sunset and note timings.
Activity: Observe sunrise and sunset and note timings.
---
---
Chapter 8: Light and Shadows
Chapter 8: Light and Shadows
Light helps us see things
Light helps us see things
Sources: Sun, Bulb, Candle
Sources: Sun, Bulb, Candle
Shadows form when light is blocked
Shadows form when light is blocked
Transparent, Translucent, Opaque objects
Transparent, Translucent, Opaque objects
Shadows change size with distance from light
Shadows change size with distance from light
Activity: Make shadows of different objects at home.
Activity: Make shadows of different objects at home.
---
---
Chapter 9: Motion and Measurement
Chapter 9: Motion and Measurement
Motion: Change in position of an object
Motion: Change in position of an object
Types: Forward, Backward, Upward, Downward
Types: Forward, Backward, Upward, Downward
Measuring length, weight, and time
Measuring length, weight, and time
Standard units: Meter (m), Kilogram (kg), Second (s)
Standard units: Meter (m), Kilogram (kg), Second (s)
Activity: Measure the height of your table in meters/centimeters.
Activity: Measure the height of your table in meters/centimeters.
---
---
Chapter 10: Work and Machines
Chapter 10: Work and Machines
Work: Doing something using force
Work: Doing something using force
Machines help make work easier
Machines help make work easier
Types of simple machines: Lever, Pulley, Wheel & Axle, Inclined Plane, Screw, Wedge
Types of simple machines: Lever, Pulley, Wheel & Axle, Inclined Plane, Screw, Wedge
Example: Scissors → Lever, Ramp → Inclined Plane
Example: Scissors → Lever, Ramp → Inclined Plane
Activity: Identify simple machines at home.
Activity: Identify simple machines at home.
---
---
Chapter 11: Soil, Rocks, and Minerals
Chapter 11: Soil, Rocks, and Minerals
Soil: Top layer of earth that helps plants grow
Soil: Top layer of earth that helps plants grow
Types: Sandy, Clayey, Loamy
Types: Sandy, Clayey, Loamy
Rocks: Solid materials, used in building
Rocks: Solid materials, used in building
Minerals: Natural substances from soil or rocks (Iron, Gold)
Minerals: Natural substances from soil or rocks (Iron, Gold)
Soil helps in farming and making mud houses
Soil helps in farming and making mud houses
Activity: Collect soil samples and observe texture.
Activity: Collect soil samples and observe texture.
---
---
Chapter 12: Force, Work, and Energy
Chapter 12: Force, Work, and Energy
Force: Push or pull
Force: Push or pull
Energy: Ability to do work
Energy: Ability to do work
Types of energy: Light, Heat, Sound, Mechanical, Electrical
Types of energy: Light, Heat, Sound, Mechanical, Electrical
Energy is needed for everything we do
Energy is needed for everything we do
Activity: Rub hands together and feel heat (mechanical energy → heat).
Activity: Rub hands together and feel heat (mechanical energy → heat).
---
---
Chapter 13: Weather and Seasons
Chapter 13: Weather and Seasons
Weather: Condition of air at a place
Weather: Condition of air at a place
Seasons: Summer, Rainy, Winter, Spring, Autumn
Seasons: Summer, Rainy, Winter, Spring, Autumn
Weather changes with temperature, rainfall, and wind
Weather changes with temperature, rainfall, and wind
Seasons affect plants, animals, and humans
Seasons affect plants, animals, and humans
Activity: Keep a 7-day weather diary.
Activity: Keep a 7-day weather diary.
---
---
Chapter 14: Safety and First Aid
Chapter 14: Safety and First Aid
Safety at home, school, and road
Safety at home, school, and road
First aid: Cleaning wounds, applying bandages
First aid: Cleaning wounds, applying bandages
Fire safety: Stop, Drop, Roll
Fire safety: Stop, Drop, Roll
Don’t touch electric wires
Don’t touch electric wires
Activity: Make a first-aid kit chart.
Activity: Make a first-aid kit chart.
---
---
Chapter 15: Natural Resources
Chapter 15: Natural Resources
Resources we get from nature: Water, Air, Soil, Forests, Minerals
Resources we get from nature: Water, Air, Soil, Forests, Minerals
Renewable vs Non-renewable resources
Renewable vs Non-renewable resources
Save resources: Don’t waste, plant trees, recycle
Save resources: Don’t waste, plant trees, recycle
Activity: Plant a small tree and take care of it.
Activity: Plant a small tree and take care of it.
---
---
Chapter 16: Our Environment
Chapter 16: Our Environment
Environment: Surroundings where we live
Environment: Surroundings where we live
Components: Plants, Animals, Air, Water, Soil
Components: Plants, Animals, Air, Water, Soil
Pollution: Air, Water, Noise, Soil
Pollution: Air, Water, Noise, Soil
Protect environment: Reduce, Reuse, Recycle, Plant trees
Protect environment: Reduce, Reuse, Recycle, Plant trees
Activity: Make a poster on “Save Environment”.
Activity: Make a poster on “Save Environment”.
---
---
Page updated
Google Sites
Report abuse