Class 4 Science Chapter 1 Test 3 Updated: 11 Jun 2022 886 Welcome to your Class 4 Science Chapter 1 Test 3 1. _________ are used for biting and cutting food. Incisors Canines Premolar Molar None 2. Rat uses its _________ for biting food or killing prey. Incisors Canines Premolar Molar None 3. When we exhale air, the lungs Contract Expand Both a & b None of these None 4. Bone marrow helps to produce ______ Blood Water Carbon dioxide None of these None 5. There are __________ bones in the human skeleton. 106 206 306 None of these None 6. The function of ribs is to protect __________ Lungs Brain Stomach All of these None 7. The bones of our arm and legs are __________. Hollow Open Closed None of these None 8. The function of skull is to protect __________ Lungs Brain Stomach All of these None 9. Premolar and molar teeth are used for: Biting and cutting Piercing and tearing Chewing and grinding None of these None 10. Lungs are surrounded by _______ Ribs Skull Brain None of these None 11. The exchange of oxygen between blood and air takes place in the _______. Lungs Brain Stomach All of these None 12. Tiger uses its ________ for piercing the prey. Incisors Canines Premolar Molar None 13. __________ are used for piercing and tearing food. Incisors Canines Premolar Molar None 14. ________ protect and support body parts. Brain Skull Skeleton Lungs None 15. Tiger has large ____________ Incisors Canines Premolar Molar None Please fill in the comment box below. Time's up
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