general review

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Across
  1. 4. He came up with the Pangea theory
  2. 5. Meaning that the sun is the center of the universe
  3. 7. This kind of field around our earth protects us and causes the northern lights
  4. 8. Having great passion about something
  5. 10. This means to change something in your environment
Down
  1. 1. The theory that the earth is the center of the universe
  2. 2. To use knowledge to come to a conclusion
  3. 3. Seeking revenge on others
  4. 6. A tree is an example of this type of resource
  5. 9. This means an unknown number in Math that is represented by a letter