Unit3 exploring the red planet

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Across
  1. 3. Feeling very sad and hopeless for a long time.
  2. 7. To judge or figure out the value or quality of something.
  3. 8. The force that pulls things toward the center of the Earth.
  4. 9. To take part in an activity or event.
Down
  1. 1. To be alone or separated from others.
  2. 2. The part of your body that helps you move.
  3. 4. Not able to wait calmly; wanting things to happen quickly.
  4. 5. To make a choice in an election or decision by marking a ballot or raising your hand.
  5. 6. To travel around a new place to learn about it.