Class 4 Science Chapter 1 Test 3 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 inhale air, the lungs _______ Contract Expand Both a & b None of these 3. All the bones are united with one another at the joints forming a frame called ________. Brain Skull Skeleton Lungs 4. The function of skull is to protect __________ Lungs Brain Stomach All of these 5. There are __________ bones in the human skeleton. 106 206 306 None of these 6. The bones of our arm and legs are __________. Hollow Open Closed None of these 7. Lungs are surrounded by _______ Ribs Skull Brain None of these 8. Tiger has large ____________ Incisors Canines Premolar Molar 9. Tiger uses its ________ for piercing the prey. Incisors Canines Premolar Molar 10. Premolar and molar teeth are used for: Biting and cutting Piercing and tearing Chewing and grinding None of these 11. __________ are used for piercing and tearing food. Incisors Canines Premolar Molar 12. Bone marrow helps to produce ______ Blood Water Carbon dioxide None of these 13. Rat uses its _________ for biting food or killing prey. Incisors Canines Premolar Molar 14. During breathing air enters in our _______ Lungs Brain Stomach All of these 15. During breathing air enters in our lungs through______ Nose Wind pipe Stomach Both a & b Please fill in the comment box below. Time is Up! Time's up
