Class 4 Science Chapter 9 Test 1 Updated: 12 Jun 2022 470 Welcome to your Class 4 Science Chapter 9 Test 1 1. All planets of solar system have moons except: Mercury Venus Both Mercury & Venus Jupiter 2. The closest star to Earth is the _________. Mercury Sun Moon None of these 3. The time taken by a planet to complete one orbit is called a/an ___period. Time Solar Orbital All of these 4. Among all the celestial bodies, ________ is the closest to the Earth. Jupitar Mercury Sun Moon 5. The natural satellites of the Earth are _______. Sun Jupiter Moon All of these 6. ________ is the largest planet in the solar system. Venus Jupiter Neptune Uranus 7. The sun is the __________ of solar system. Power station Part Center Planet 8. Moon complete one revolution around the Earth is about _______days. 28.5 29.5 30.5 None of these 9. The third biggest thing appearing in the sky after the sun and moon is _____. Venus Jupiter Neptune Uranus 10. Which planets have maximum number of Moons? Mercury Saturn Both Jupiter & Saturn Jupiter 11. Complete moon is called ______ Full moon Badar Crescent Both Full moon & badar 12. The moon completes one round around earth in ______ 27.3 28.3 29.3 30.3 13. 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 14. The Moon has ______ atmosphere. Many One Two no 15. On the first day of lunar month, the very narrow shape of Moon is known as______. Full moon Badar Crescent Both Full moon & badar 16. The ebb and flow of the ________in the sky is due to its rotation around Earth. Sun Jupiter Venus Moon 17. The distance between Earth and Moon is about _______km. 284,000 384,000 484,000 584,000 18. The diameter of the moon is about _______km. 2,500 3,000 3,500 None of thee 19. The first planet that revolves closest to the sun is______. Jupiter Venus Earth Mercury 20. ______ is the brightest object appearing in the sky after the sun is the Moon. Venus Jupiter Neptune Uranus Time's up
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