Mid-Point Review

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Across
  1. 3. The point in a planet’s orbit when it is closest to the Sun.
  2. 4. A cloud of gas and dust in space that formed the Sun and planets.
  3. 6. The force that keeps an object moving in a circle, pulling it toward the center.
  4. 8. The group of the Sun and all the planets, moons, asteroids, and comets that orbit around it.
  5. 9. The point in a planet’s orbit when it is farthest from the Sun.
  6. 10. A model of the solar system where the Sun is at the center.
Down
  1. 1. The path an object takes as it moves around another object in space.
  2. 2. A small object made of rock and ice that can come together to form a planet.
  3. 3. The apparent shift in position of an object when viewed from different places.
  4. 5. The force that pulls objects toward each other, like the Earth pulling things down.
  5. 7. A model of the solar system where the Earth is at the center.