Unit 5 Vocabulary Review

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Across
  1. 1. rounded
  2. 3. an area where light is blocked by an object.
  3. 5. when Earth comes between the Sun and the Moon, and Earth's shadow falls on the Moon
  4. 9. groups of stars that people have imagined to represent different shapes or objects.
  5. 10. natural objects that are located outside of Earth’s atmosphere, such as stars, planets, and asteroids
  6. 13. the force that pulls objects toward the center of the Earth
  7. 14. bright, celestial objects that give off their own light by using energy produced in their core
Down
  1. 2. brightness of stars, specifically when measured from the viewpoint of Earth
  2. 4. a force that is caused by air and works against gravity.
  3. 6. an instrument that allows people to see distant objects in space
  4. 7. scientists who study outer space
  5. 8. an imaginary line that runs through the center of the planet.
  6. 11. devices that use shadows to help people tell time.
  7. 12. to move around an object in space as a result of a gravitational pull. For example, Earth orbits the Sun.