Test your basic knowledge |

CSET Astronomy

Subjects : cset, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The first day of spring because the earth's axis is perpendicular to the sun's rays






2. The universe started 14 billion years ago and everything was packed in a dense point called a singularity that exploded






3. A group of planets that includes Earth that started out as a large gas cloud






4. Strange dark patches found on the sun that are caused by the sun's electromagnetic field






5. Small gas giant with gray rings and 25 moons on it






6. The dark spots on the moons






7. The shortest day of the season because the northern hemisphere is pointed farthest away from the sun






8. Galaxies shaped like round or flattened spheres






9. Planets that are made from hunks of rock like Earth






10. Planet referred to as Earth's sister because it is the same size as Earth; contains a lot of sulfuric acid






11. Enormous jets of gas that shoot out of thes un






12. Objects moving farther from the Earth have a longer wavelength






13. The first day of fall because the earth's axis is perpendicular to the sun's rays






14. Gas giant that is very bluish and named after the Roman God of the sea and has a stormy gray dark spot






15. The inside of the Sun - which is 14 million degrees Celsius






16. A region that is so dense that it will trap stuff in it forever. It is started either by the death of a large star or when millions of matter clump together






17. Stars that are preparing to die when they run out of hydrogen in their core by blowing up bigger than their size as the surface cools down






18. Areas at the outer edge of the solar system where small bodies of comets are thought to have originated






19. The time zone at 0 degrees longitude on the Earth






20. Clouds of gas and dust that form stars






21. The surface of the Sun - which is close to 6000 degrees Celsius






22. The sun's atmosphere






23. Waves that are moving closer to the Earth have shorter wavelengths






24. When the moon and the sun are on the opposite sides of the earth






25. A large chunk of rock that revolves around the Sun and is part of a large belt between Mars and Jupiter






26. The lifeline of a star






27. The longest day of the season because the northern hemisphere is pointed directly at the sun






28. Gigantic gas giant that has large rings and 45 moons orbiting it






29. Super dense stars that are as massive as the sun but twice as small






30. Phenomenon when the moon passes over the sun and the earth






31. The idea that the universe appeared without a beginning






32. Galaxies that are shaped like discs and contain middle aged stars and a moderate amount of gas and dust






33. The largest planet that is also a gas giant and has a permanent storm on its surface known as the Big Red Spot






34. Our home planet - which has the right amount of atmosphere to support life






35. Galaxies that have undefined shapes and made up of young stars - gas and dust






36. The period from one full moon to another full moon






37. A star with a heavy mass dies by combining its protons and electrons into neutrons






38. The planet that is the closest to the sun. It has a hot side and a cold side






39. The way that the earth is split in 24 ways which run north - south because the earth spins at 15 degrees per hour






40. A baby star






41. Change in frequency of a wave for an observer moving relative to the source of the wave.






42. Neutron stars that spin rapidly and release radio waves






43. Clumps of ice and dust that orbit the sun






44. Planets that are made of gas clouds like Jupiter






45. Has 200 to 400 billion stars in its galaxy - including the Sun






46. A star's core dies out by collapsing until it forms a tiny area of infinite density






47. Form of galaxy that looks like a spiral with a bulge n the middle; like the Milky Way






48. Also known as the dwarf planet and was demoted from being an official planet in 2002






49. Result of a collapsed star or collapsed group of stars that light cannot escape






50. Red planet that has a lot of iron on it and has the tallest mountain in the solar system: the Olympus Mons