Class 4 Science Chapter 1 Test 3 Updated: 11 Jun 2022 414 Welcome to your Class 4 Science Chapter 1 Test 3 1. The function of bones of leg is to help in _____ Locomotion Walking Both a & b None of these 2. When we exhale air, the lungs Contract Expand Both a & b None of these 3. Premolar and molar teeth are used for: Biting and cutting Piercing and tearing Chewing and grinding None of these 4. There are ________ types of human teeth. 2 3 4 5 5. During breathing air enters in our lungs through______ Nose Wind pipe Stomach Both a & b 6. Bone marrow helps to produce ______ Blood Water Carbon dioxide None of these 7. Rat uses its _________ for biting food or killing prey. Incisors Canines Premolar Molar 8. There are __________ bones in the human skeleton. 106 206 306 None of these 9. Tiger has large ____________ Incisors Canines Premolar Molar 10. During breathing air enters in our _______ Lungs Brain Stomach All of these 11. The function of skull is to protect __________ Lungs Brain Stomach All of these 12. Tiger uses its ________ for piercing the prey. Incisors Canines Premolar Molar 13. _________ are used for biting and cutting food. Incisors Canines Premolar Molar 14. The exchange of oxygen between blood and air takes place in the _______. Lungs Brain Stomach All of these 15. Lungs are surrounded by _______ Ribs Skull Brain None of these Please fill in the comment box below. Time's up
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