Class 4 Science Chapter 9 Test 1 Updated: 12 Jun 2022 290 Welcome to your Class 4 Science Chapter 9 Test 1 1. Which planets have maximum number of Moons? Mercury Saturn Both Jupiter & Saturn Jupiter 2. The natural satellites of the Earth are _______. Sun Jupiter Moon All of these 3. ______ is the brightest object appearing in the sky after the sun is the Moon. Venus Jupiter Neptune Uranus 4. The ebb and flow of the ________in the sky is due to its rotation around Earth. Sun Jupiter Venus Moon 5. Among all the celestial bodies, ________ is the closest to the Earth. Jupitar Mercury Sun Moon 6. Moon complete one revolution around the Earth is about _______days. 28.5 29.5 30.5 None of these 7. Solar system consists of all the planets which ______ around the sun. Runs away Close Revolves None of these 8. The circular path of a planet around the sun is called a/an______. Solar system Planets Both a & b Orbit 9. The sun is the __________ of solar system. Power station Part Center Planet 10. 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 11. The closest star to Earth is the _________. Mercury Sun Moon None of these 12. The first planet that revolves closest to the sun is______. Jupiter Venus Earth Mercury 13. The sun is a_________. Galaxy Moon Star ball 14. All planets of solar system have moons except: Mercury Venus Both Mercury & Venus Jupiter 15. ________ is the largest planet in the solar system. Venus Jupiter Neptune Uranus 16. The time taken by a planet to complete one orbit is called a/an ___period. Time Solar Orbital All of these 17. The third biggest thing appearing in the sky after the sun and moon is _____. Venus Jupiter Neptune Uranus 18. The distance between Earth and Moon is about _______km. 284,000 384,000 484,000 584,000 19. 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 20. The moon completes one round around earth in ______ 27.3 28.3 29.3 30.3 Time's up
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