Secret Alien File

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Across
  1. 1. When the moon is full (behind the Earth) or new (between the Earth and Sun) we get _______ tides
  2. 3. The small osscilations (swinging) during precession that does slightly change the tilt
  3. 4. The wobble of the Earth on its axis without changing the tilt
  4. 5. If we want to decrease the gravitational force between 2 objects we could _______ (increase/decrease) their mass
  5. 7. Nuclear _____ is how Earth's energy is made
  6. 11. Type of waves the Sun's energy travels as
Down
  1. 2. How solar energy in converted to chemical energy
  2. 6. Kepler's first law says that all planets must orbit the sun in a(n) ________ (circle/ellipse/square)
  3. 8. Kepler's 2nd law is the law of equal ______ (volume, masses, areas)
  4. 9. When the moon is perpindicular (forms a 90 degree angle) to the sun and Earth, we get _____ tides
  5. 10. The _______ has more effect on the tides because it is closer to Earth