many different science things

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Across
  1. 3. holds things in orbit. And is also strong and also think newton
  2. 5. vs revolution: one spins around stuff. And the other revolves around stuff
  3. 7. they are old and you have to dig them up. Also the remains of something
Down
  1. 1. there is winter spring fall and Summer. Also earths tilt causes them
  2. 2. goes dark for a couple minutes. And cant happen every month
  3. 4. vs outer: one is a gas giant. And the other is nicknamed Jovian there are only two
  4. 6. phases: there is a new moon and a full moon. And many different ones
  5. 8. of superposition: they are related to fossils. And have lots of lairs some are rocks