2. Are you ready for your first Space Quest? Use the buttons below to guide you through the practice quiz. Time to practice!

3. The sun with the group of celestial bodies that revolve around it universe galaxy solar system absolute magnitude apparent magnitude planet light year star Next Question

4. All of space and everything in it universe galaxy solar system absolute magnitude apparent magnitude planet light year star Next Question

5. A unit of distance equal to the distance that light travels in one year universe galaxy solar system absolute magnitude apparent magnitude planet light year star Next Question

6. A major body (not a comet or asteroid) orbiting around a star universe galaxy solar system absolute magnitude apparent magnitude planet light year star Next Question

7. The brightness of a star if it were a standard distance from Earth universe galaxy solar system absolute magnitude apparent magnitude planet light year star Next Question

8. A large collection of stars, gas and dust held together by mutual gravitation universe galaxy solar system absolute magnitude apparent magnitude planet light year star Next Question

9. The brightness of a star as seen from Earth universe galaxy solar system absolute magnitude apparent magnitude planet light year star Next Question

10. A natural, luminous, celestial body universe galaxy solar system absolute magnitude apparent magnitude planet light year star Next question

11. How are galaxies (mainly) classified? by size by color by shape by brightness Next Question

12. How is an elliptical galaxy different from a spiral galaxy? Elliptical galaxies have almost no gas or dust Spiral galaxies contain only old stars Spiral galaxies have almost no gas or dust none of the above Next Question

13. The hottest stars are …. red blue white none of the above Next Question

14. The two gases that our sun is made of are…. hydrogen and oxygen hydrogen and helium oxygen and carbon dioxide helium and carbon dioxide Next Question

15. The region of the sun responsible for producing light is… the corona the core the photosphere the chromosphere Next Question

16. The main characteristics used to classify stars are… age, brightness and size brightness, temperature and size brightness, color and temperature brightness, age and temperature What’s next?

17. Sorry, but that term does not match the definition. Try again! Click the button to return to the question. OOPS! Return to question

18. ALL RIGHT! The sun with the group of celestial bodies that revolve around it is called a SOLAR SYSTEM! Keep moving!

19. All of space and everything in it is the definition of the UNIVERSE! ALL RIGHT! Keep moving!

20. A unit of distance equal to the distance that light travels in one year is called a LIGHT YEAR! ALL RIGHT! Keep moving!

21. A major body (not a comet or asteroid) orbiting around a star is also known as a PLANET! ALL RIGHT! Keep moving!

22. The brightness of a star if it were a standard distance from Earth is called the star’s ABSOLUTE MAGNITUDE! ALL RIGHT! Keep moving!

23. A large collection of stars, gas and dust held together by mutual gravitation is what scientists call a GALAXY! ALL RIGHT! Keep moving!

24. The brightness of a star as seen from Earth is called the star’s APPARENT MAGNITUDE! ALL RIGHT! Keep moving!

25. A natural, luminous, celestial body is better known as a STAR! ALL RIGHT! Keep moving!

26. ALL RIGHT! Keep moving!

27. Congratulations! You have just successfully completed the vocabulary practice for your upcoming science quest. Keep reviewing and best of luck to you! The End