Class 4 Science Chapter 1 Test 4 Updated: 11 Jun 2022 190 Welcome to your Class 4 Science Chapter 1 Test 4 1. Muscles work with the _______. Bones Joints Both a & b None of these 2. _________ is present within our skill. Lungs Stomach Heart Brain 3. Muscles work in _________ Alone Pair Every where None of these 4. Stomach is present on the ___________ side below the heart. Left Right Both sides No one of these 5. Heart circulates blood over the body through blood _______ Bones Vessels Lungs Brain 6. When one muscle contracts, the other one _________. Also contract Relaxes Both a & b None of these 7. Due to __________, our lungs expand and contract. Ribs Skull Muscles None of these 8. When we smile ______ muscles are needed. 12 13 14 15 9. ________ are pink or red in color. Mouth Hair Muscles None of these 10. Stomach secretes _______ juice. Observing Hungry Digestive All of these 11. __________ works continuously like a pump throughout the life. Lungs Brain Stomach Heart 12. ____________ is surrounded by the ribs. Heart Skull Brain None of these 13. When muscles contract, bone moves at the _________. Joint Leg Ribs Skull 14. Stomach is the _________ part of digestive track. Smallest Tallest Biggest Shortest 15. Our heat pumps with the help of __________. Ribs Skull Muscles None of these Please fill in the comment box below. Time is Up! Time's up
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