Class 4 Science Chapter 9 Test 1 Welcome to your Class 4 Science Chapter 9 Test 1 1. The Moon has ______ atmosphere. Many One Two no 2. The moon completes one round around earth in ______ 27.3 28.3 29.3 30.3 3. The ebb and flow of the ________in the sky is due to its rotation around Earth. Sun Jupiter Venus Moon 4. The first planet that revolves closest to the sun is______. Jupiter Venus Earth Mercury 5. ______ is the brightest object appearing in the sky after the sun is the Moon. Venus Jupiter Neptune Uranus 6. The time taken by a planet to complete one orbit is called a/an ___period. Time Solar Orbital All of these 7. The circular path of a planet around the sun is called a/an______. Solar system Planets Both a & b Orbit 8. The natural satellites of the Earth are _______. Sun Jupiter Moon All of these 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 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 12. Solar system consists of all the planets which ______ around the sun. Runs away Close Revolves None of these 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. Moon complete one revolution around the Earth is about _______days. 28.5 29.5 30.5 None of these 16. The diameter of the moon is about _______km. 2,500 3,000 3,500 None of thee 17. The third biggest thing appearing in the sky after the sun and moon is _____. Venus Jupiter Neptune Uranus 18. Complete moon is called ______ Full moon Badar Crescent Both Full moon & badar 19. The sun is the __________ of solar system. Power station Part Center Planet 20. Among all the celestial bodies, ________ is the closest to the Earth. Jupitar Mercury Sun Moon Time is Up! Time's up
