Class 4 Science Chapter 1 Test 4 Updated: 11 Jun 2022 693 Welcome to your Class 4 Science Chapter 1 Test 4 1. _______ of our body weight is due to muscles Full Half Zero 5 kg 2. When one muscle contracts, the other one _________. Also contract Relaxes Both a & b None of these 3. Muscles work with the _______. Bones Joints Both a & b None of these 4. __________ is a place where bones are connected Joint Leg Ribs Skull 5. _____________ move food through digestive system. Ribs Skull Muscles None of these 6. _________ controls the functions of our body. Lungs Stomach Heart Brain 7. Human bones are attached and covered by _______. Mouth Hair Muscles None of these 8. __________ works continuously like a pump throughout the life. Lungs Brain Stomach Heart 9. Stomach is present on the ___________ side below the heart. Left Right Both sides No one of these 10. Heart circulates blood over the body through blood _______ Bones Vessels Lungs Brain 11. ______ help to move hands, arm, feet and legs. Ribs Skull Muscles None of these 12. The muscles are _________. Hard Soft Both a & b None of these 13. There are _______ muscles in a human body. 300 400 500 600 14. The _________ of the heart contract and relax. Bone Vein Muscles None of these 15. Muscles work in _________ Alone Pair Every where None of these Please fill in the comment box below. Time's up
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