Class 4 Science Chapter 9 Test 1 Updated: 12 Jun 2022 645 Welcome to your Class 4 Science Chapter 9 Test 1 1. The third biggest thing appearing in the sky after the sun and moon is _____. Venus Jupiter Neptune Uranus None 2. ________ is the largest planet in the solar system. Venus Jupiter Neptune Uranus None 3. The moon completes one round around earth in ______ 27.3 28.3 29.3 30.3 None 4. ______ is the brightest object appearing in the sky after the sun is the Moon. Venus Jupiter Neptune Uranus None 5. The ebb and flow of the ________in the sky is due to its rotation around Earth. Sun Jupiter Venus Moon None 6. The distance between Earth and Moon is about _______km. 284,000 384,000 484,000 584,000 None 7. The Moon has ______ atmosphere. Many One Two no None 8. The natural satellites of the Earth are _______. Sun Jupiter Moon All of these None 9. The diameter of the moon is about _______km. 2,500 3,000 3,500 None of thee None 10. The circular path of a planet around the sun is called a/an______. Solar system Planets Both a & b Orbit None 11. Among all the celestial bodies, ________ is the closest to the Earth. Jupitar Mercury Sun Moon None 12. Moon complete one revolution around the Earth is about _______days. 28.5 29.5 30.5 None of these None 13. The closest star to Earth is the _________. Mercury Sun Moon None of these None 14. The sun is the __________ of solar system. Power station Part Center Planet None 15. The sun is a_________. Galaxy Moon Star ball None 16. On the first day of lunar month, the very narrow shape of Moon is known as______. Full moon Badar Crescent Both Full moon & badar None 17. The first planet that revolves closest to the sun is______. Jupiter Venus Earth Mercury None 18. Which planets have maximum number of Moons? Mercury Saturn Both Jupiter & Saturn Jupiter None 19. All planets of solar system have moons except: Mercury Venus Both Mercury & Venus Jupiter None 20. The Earth and the Moon, other planets, comets and asteroids etc. revolve around the sun due to the ___________of the sun. Center Gravity Magnetic field Solar system None Time's up
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