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| Unit 1 | Classification of animals and birds | |
| Unit 2 | Food chains and web | |
| Unit 3 | Habitat and adaptation | |
| Unit 4 | Life cycle of an animal/ an insect/a bird | |
| Unit 5 | Classification of different animals on the basis of | |
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| Unit 1 | Cells, tissues, organs and organ systems | |
| Unit 2 | Organ system: Nervous system, skeletal system, muscular system, circulatory system, digestive system, breathing system, excretory system, reproductive system | |
| Unit 3 | Types of muscles | |
| Unit 4 | Skeletal system-bones | |
| Unit 5 | Importance of good posture and exercise | |
| Unit 6 | Circulatory System | |
| Unit 7 | Organs/parts of the circulatory system, their structure | |
| Unit 8 | Preservation of perishable and nonperishable food | |
| Unit 9 | Diseases related to food habits, lifestyle and symptoms of the diseases in simple terms | |
| Unit 10 | Prevention of the diseases in non-technical terms | |
| Unit 11 | Communicable and non-communicable disease | |
| Unit 12 | Type of germs, disease caused by them and mode their mode of transmission | |
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| Unit 1 | Reproduction in plants | |
| Unit 2 | New plants from seeds | |
| Unit 3 | Seed germination | |
| Unit 4 | Dispersal of seeds | |
| Unit 5 | Crops | |
| Unit 6 | Pollination | |
|
| Unit 1 | Substances which dissolves in water | |
| Unit 2 | Impurities in water | |
| Unit 3 | Removing insoluble impurities | |
| Unit 4 | Removing soluble impurities | |
| Unit 5 | Removing disease germs | |
| Unit 6 | Water pollution | |
|
| Unit 1 | Natural and man-made resources | |
| Unit 2 | Composition of air | |
| Unit 3 | Inhaled and exhaled air | |
| Unit 4 | Properties of air | |
| Unit 5 | Uses of air pressure | |
| Unit 6 | Natural calamities: Floods, droughts and earthquakes | |
| Unit 7 | Floods and cyclones | |
| Unit 8 | Droughts | |
| Unit 9 | Earthquakes | |
|
| Unit 1 | The Solar Family | |
| Unit 2 | The Earth and beyond | |
| Unit 3 | Movement of the moon | |
| Unit 4 | Phases of the moon | |
| Unit 5 | Conditions on moon | |
| Unit 6 | Exploration of the moon | |
| Unit 7 | Eclipses | |
|
| Unit 1 | Solids: Properties of solids-definite shape, geometry | |
| Unit 2 | Liquids: Properties of liquids-occupy space, | |
| Unit 3 | Gases: Properties of gases-no definite shape and volume | |
|
| Unit 1 | Need for machines | |
| Unit 2 | Need for levers | |
| Unit 3 | Types of levers | |
| Unit 4 | Meaning of work, examples of work done/not done | |
| Unit 5 | Definition of energy; energy is need for work | |
| Unit 6 | Various kinds/forms of energy | |
