Earth Space Science Extra Credit

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Across
  1. 2. A statement that seems to say two opposite things
  2. 5. A vast cloud of comets some astronomers theorize is orbiting the sun at the solar system's edge.
  3. 7. The act of declaring to be true or right.
  4. 9. A science that deals with water and its properties.
  5. 10. A nuclear reaction in which atomic nuclei combine to release tremendous amounts of energy.
  6. 11. To set inside surrounding matter.
Down
  1. 1. The mathematical process or result of computing.
  2. 3. To cut, carve, or scoop out.
  3. 4. To be tossed or hurled with great force.
  4. 6. An extinct type of crustacean having a flat body of three parts and many legs.
  5. 8. The amount of space inside; largest amount that can be held by a container.
  6. 9. An extremely light, colorless, odorless gas that will not burn.