Class 4 Science Chapter 9 Test 1 Welcome to your Class 4 Science Chapter 9 Test 1 1. ________ is the largest planet in the solar system. Venus Jupiter Neptune Uranus 2. The sun is the __________ of solar system. Power station Part Center Planet 3. Solar system consists of all the planets which ______ around the sun. Runs away Close Revolves None of these 4. The circular path of a planet around the sun is called a/an______. Solar system Planets Both a & b Orbit 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 distance between Earth and Moon is about _______km. 284,000 384,000 484,000 584,000 7. The third biggest thing appearing in the sky after the sun and moon is _____. Venus Jupiter Neptune Uranus 8. On the first day of lunar month, the very narrow shape of Moon is known as______. Full moon Badar Crescent Both Full moon & badar 9. The diameter of the moon is about _______km. 2,500 3,000 3,500 None of thee 10. The Moon has ______ atmosphere. Many One Two no 11. The first planet that revolves closest to the sun is______. Jupiter Venus Earth Mercury 12. Among all the celestial bodies, ________ is the closest to the Earth. Jupitar Mercury Sun Moon 13. 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 14. The ebb and flow of the ________in the sky is due to its rotation around Earth. Sun Jupiter Venus Moon 15. The moon completes one round around earth in ______ 27.3 28.3 29.3 30.3 16. Complete moon is called ______ Full moon Badar Crescent Both Full moon & badar 17. The time taken by a planet to complete one orbit is called a/an ___period. Time Solar Orbital All of these 18. The closest star to Earth is the _________. Mercury Sun Moon None of these 19. ______ is the brightest object appearing in the sky after the sun is the Moon. Venus Jupiter Neptune Uranus 20. Moon complete one revolution around the Earth is about _______days. 28.5 29.5 30.5 None of these Please fill in the comment box below. Time is Up! Time's up