TOPIC: Our Internal Organs. I. Fill in the blanks.

Transcription

1 INDIAN SCHOOL AL WADI AL KABIR DEPARTMENT OF EVS ( ) REVISION WORKSHEET FOR FINAL EXAMINATION NAME: CLASS: IV SEC: I. Fill in the blanks. TOPIC: Our Internal Organs DATE: 1. The organs in the human body that are visible to everyone are called. 2. The basic building blocks of a human body are the. 3. A group of organs working together forms an. 4. There are bones in a human body. 5. The bony framework of a human body is called the. 6. The organs that are present inside the human body and cannot be seen are called. 7. The is a bony cage that protects the soft internal organs. 8. Our bones are made mainly of. (mineral) 9. The place where two bones join together is known as a. 10. The muscles in the pump blood in the human body. 11. is the process of breaking down food into smaller substances so that it is easily absorbed by the body. 12. The swallowed food passes through the food pipe into a muscular bag called the in the human body. 13. In the of the human body, the digested food is absorbed into the blood. 14. Humans inhale a gas called and exhale a gas called. 15. The lungs during inhalation and during exhalation. (contract/expand) 16. The blood moves through the human body in tubes called. 17. Messages are carried to and from the human brain through the. 18. The blood carries the digested food and to all parts of the human body. 19. The nerves are connected to the human brain through the. 20. The process of digestion begins in the. 21. The pull the bones to make them move. 22. Mention the internal organs of the human body protected by the following: i. The skull protects the. ii. iii. The backbone protects the. The ribcage protects the and the. 23. Air enters the lungs through the. 24. The, the and the make the nervous system of human body. 25. The undigested food enters the and comes out of the body through the as waste. II. Label the following systems of the human body.

2 FOODS WE EAT I. Fill in the blanks. 1. (nutrient) can be easily stored in the body. 2. is the main nutrient in all the body building food. 3. Food with and are called protective food. 4. The part of the food that we cannot digest is called or. 5. A balanced diet is a meal which includes all the, and in the right amount. 6. Grains like rice, wheat and maize and millets like jowar and bajra are called. 7. The seeds that are crushed to make oil are called. 8. Guru Nanak s birthday is popularly known as. 9. is a festival that is celebrated over a period of nine days. 10. The community lunch served in Gurudwaras is called the. II. Give examples for the following. 1. oilseeds 2. lentils 3. grains 4. millets 5. sources of carbohydrates 6. sources of fats 7. Sources of proteins 8. Sources of vitamins 9. Sources of minerals III. Complete the details in the given table. Nutrients Functions Carbohydrates Fats Proteins Vitamins Minerals Water Roughage

3 HOW ANIMALS EAT III. Complete the details in the table given below. I. Fill in the blanks. 1. There are tiny on our tongue that helps us differentiate between different tastes. 2. The helps in rolling the food so that it is well chewed in the mouth. 3. The tusks of elephants are actually enlarged. 4. The process by which birds smoothen their feathers using their beaks is called. 5. are the curved pointed nails found at the end of a bird s toes. 6. Eagles and hawks have sharp, curved claws called. 7. Ducks, swans and geese have feet. 8. Cranes and flamingoes have long thin legs to through water. Picture of teeth Name of teeth No. each jaw in Total No. Function II. Label the following diagram. Birds Types of beaks Uses Hummingbird Duck sharp pointed beak (chisel shaped) strong, sharp and hooked beaks Sparrows, pigeons and peacocks sharp pointed beak (like tweezers) strong curved beak (like nut cracker) pokes the fish with its beak and lifts it out of the water cracks nuts and seeds

4 WANT NOT, WASTE NOT I. Rewrite the correct form of the following statements. 1. Pencil shavings, leaves, grass, flowers and paper are non-ot biodegradable waste. 2. Plastic, metal and glass rot and mix with the soil. 3. Electronic waste are environment friendly. 4. Non-biodegradable waste is used to make compost which is manure for plants. 5. We should use more plastic bags. 1. means converting waste into reusable material. 2. The 3 Rs of waste management are Reduce, and. 3. The things we buy, the more waste we generate. 4. Harmful chemicals seep into the soil and pollute the water. 5. paper is made from used paper. 6. The large open dumps outside the city are called. III. Think and answer. 1. How does garbage piled in heaps lead to air pollution and water pollution? 2. Why is recycling paper good for the environment? 3. Why non-biodegradable waste cannot be used to prepare compost? IV. Differentiate between biodegradable and nonbiodegradable waste. WHERE ANIMALS LIVE I. Give examples for the following. 1. terrestrial animals 2. arboreal animals 3. aquatic animals 4. amphibians 5. reptiles 1. Rabbits live in. 2. Spiders trap their food in their. 3. A uses camouflage to hide from its enemy. 4. Terrestrial animals breathe with the help of their. III. Define the following terms. 1. habitat 2. Hibernation IV. Complete the details in the table given below. Animals Adaptations to their habitat (2 points) Polar Bears Monkeys Fish Camels Frogs V. Think and answer. 1. Dolphins and whales are aquatic animals. They do not have gills. How do they breathe? 2. Both amphibians and reptiles can live both on land and in water. What is the difference between them with regards to their breathing process?

5 BIRDS AND THEIR NESTS I. Define the following terms. 1. Incubation 2. Predators 1. Birds usually build their nests during to lay eggs. 2. The nests of look like beautiful hanging baskets. 3. use the abandoned nests of other birds. 4. make holes in tree trunks to use as nests. 5. The and the are examples for water birds. 6. Snow goose builds its nest on the. 7. build huge nests on top of houses, chimneys and telephone poles. 8. stitch leaves together to make their nests. 9. The male and female koels look to each other. III. Give reasons for the following statements. 1. The cuckoo is a naughty bird. 2. The koel is a clever but lazy bird. 3. Birds choose the place where they make their nests with great care. IV. Fill in the details in the given graphic organiser. BUILT BY (animals/birds) NESTS BUILT USING (materials used) WATER I. Differentiate between perennial rivers and seasonal rivers. II. Rewrite the correct version of the statements given below. 1. More than half of the Earth is covered with fresh water. 2. Sea water can be used to water plants and crops. 3. Many farmers in India are dependent on water from the seas for growing their crops. 4. As people dig deeper and deeper to draw water, the level of ground water increases. 5. Clean, drinking water is called polluted water. 6. Tap water is safe to drink. 7. River is the main source of fresh water. III. Complete the details in the given graphic organiser. Water Pollution Causes Effects of drinking polluted water Effects of bathing in polluted water Impact on aquatic animals BUILT DURING (season) BUILT ON (places) IV. Answer the following questions. 1. Describe the methods of purifying water. 2. What can be done to protect our water bodies? 3. What is the difference between a lake and a pond? 4. Why can t we drink sea water?

6 HOW WATER CHANGES I. Name the processes shown in the picture given below. 6. The three forms of water are, and. 7. Water vapour is also known as. III. Give reasons for the following statements. 1. Ice melts when kept out of refrigerator. 2. Water freezes when kept inside the freezer. 3. Clothes dry faster on a sunny day than on a rainy day. 4. When ice cubes are added in a glass of water, water droplets are formed outside it. IV. Answer the following questions. 1. How are clouds formed? 2. Explain the water cycle in detail. ======================================== 1. The heat from the warms the water in the seas, rivers and lakes. 2. The process of moving of water from land to sky and back again is known as the. 3. The process by which water turns into steam is called. 4. Condensation is the process where turns into. 5. The three states of matter are, and. ========================================