Class 4 Science Chapter 9 Test 1 Updated: 12 Jun 2022 83 Welcome to your Class 4 Science Chapter 9 Test 1 1. Among all the celestial bodies, ________ is the closest to the Earth. Jupitar Mercury Sun Moon 2. Complete moon is called ______ Full moon Badar Crescent Both Full moon & badar 3. On the first day of lunar month, the very narrow shape of Moon is known as______. Full moon Badar Crescent Both Full moon & badar 4. The time taken by a planet to complete one orbit is called a/an ___period. Time Solar Orbital All of these 5. The moon completes one round around earth in 27.3 days and since earth is also moving, so moon is completed for us in ______ 28.5 29.5 30.5 None of these 6. The third biggest thing appearing in the sky after the sun and moon is _____. Venus Jupiter Neptune Uranus 7. 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 8. The moon completes one round around earth in ______ 27.3 28.3 29.3 30.3 9. Which planets have maximum number of Moons? Mercury Saturn Both Jupiter & Saturn Jupiter 10. The closest star to Earth is the _________. Mercury Sun Moon None of these 11. The ebb and flow of the ________in the sky is due to its rotation around Earth. Sun Jupiter Venus Moon 12. The sun is a_________. Galaxy Moon Star ball 13. ______ is the brightest object appearing in the sky after the sun is the Moon. Venus Jupiter Neptune Uranus 14. The natural satellites of the Earth are _______. Sun Jupiter Moon All of these 15. The sun is the __________ of solar system. Power station Part Center Planet 16. Moon complete one revolution around the Earth is about _______days. 28.5 29.5 30.5 None of these 17. The diameter of the moon is about _______km. 2,500 3,000 3,500 None of thee 18. ________ is the largest planet in the solar system. Venus Jupiter Neptune Uranus 19. The distance between Earth and Moon is about _______km. 284,000 384,000 484,000 584,000 20. The Moon has ______ atmosphere. Many One Two no Time is Up! Time's up
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