Unit 4 Space: Lab Practical Vocabulary Review

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Across
  1. 3. Responsible for trapping heat and helping keep the planet warm. Made mostly of Nitrogen and Oxygen.
  2. 7. A chunk of ice and rock originating from the outer solar system, often accompanied by a tail. Does not enter the atmosphere.
  3. 9. Seventh planet from the sun
  4. 12. A large rock in orbit generally between Mars and Jupiter. These rocks are large but smaller than planets.
  5. 14. The process in which plants create oxygen and chemical energy, which is one reason why life exists on earth.
  6. 20. A rock in space that’s bigger than a dust grain but smaller than an asteroid.
  7. 21. The motion of an object around a point, such as a planet or sun
  8. 22. Mercury, venus, earth, and mars are all __ planets
  9. 23. Eighth planet from the sun
  10. 25. When a space rock enters the atmosphere and starts burning up, creating a streak of light. These are shooting stars!
  11. 26. Second planet from the sun
  12. 28. Jupiter, Saturn, Uranus, and Neptune are all __ planets.
  13. 29. changes based on location, measured in N, represents the amount of force on an object due to gravity.
  14. 30. First planet from the sun
  15. 31. Force of attraction between two objects due to their mass
Down
  1. 1. As gravity increases the speed/velocity of an orbiting object gets _______.
  2. 2. Sphere-shaped group of small rock and ice that are the furthest objects from the sun
  3. 4. Third planet from the sun
  4. 5. Having less mass or objects further apart causes a ______ in gravity.
  5. 6. Describes how close an object is to a point of reference.
  6. 8. Sixth planet from the sun
  7. 10. Area beyond Neptune that has comets and dwarf planets such as Pluto.
  8. 11. Fourth planet from the sun
  9. 13. Another name for Jovian planets.
  10. 15. An area around a star where it is neither too hot nor too cold for liquid water to exist on the surface of the planets within the area.
  11. 16. an average-sized star, composed of helium and hydrogen, at the center of the solar system
  12. 17. As gravity decreases the speed/velocity of an orbiting object gets _______.
  13. 18. Fifth planet from the sun
  14. 19. This is found in our atmosphere and is responsible for blocking harmful UV radiation.
  15. 21. The action of rotating around an axis or center.
  16. 24. When a space rock lands on the earth.
  17. 25. does not change based on location, measured in kg or g, represents how much matter makes up an object.
  18. 27. Having more mass or objects moving closer together causes a ______ in gravity.