Class 4 Science Chapter 1 Test 4 Welcome to your Class 4 Science Chapter 1 Test 4 1. The _________ of the heart contract and relax. Bone Vein Muscles None of these 2. __________ works continuously like a pump throughout the life. Lungs Brain Stomach Heart 3. Our heat pumps with the help of __________. Ribs Skull Muscles None of these 4. Due to __________, our lungs expand and contract. Ribs Skull Muscles None of these 5. ____________ is surrounded by the ribs. Heart Skull Brain None of these 6. ______ help to move hands, arm, feet and legs. Ribs Skull Muscles None of these 7. The ________ is a sac like organ. Lungs Brain Stomach Kidney 8. Stomach secretes _______ juice. Observing Hungry Digestive All of these 9. _____________ move food through digestive system. Ribs Skull Muscles None of these 10. _________ controls the functions of our body. Lungs Stomach Heart Brain 11. When one muscle contracts, the other one _________. Also contract Relaxes Both a & b None of these 12. _________ is present within our skill. Lungs Stomach Heart Brain 13. When muscles contract, bone moves at the _________. Joint Leg Ribs Skull 14. The muscles are _________. Hard Soft Both a & b None of these 15. ________ are pink or red in color. Mouth Hair Muscles None of these Please fill in the comment box below. Time is Up! Time's up
