Science Puzzle

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Across
  1. 3. Property of matter to resist changes in its state of motion.
  2. 4. Law that states every object with mass has a force acting on another.
  3. 5. Property of matter that quantifies its resistance to inertia.
  4. 6. The gases that surround planets
  5. 7. A flying object consisting of ice and dust that leaves a glowing trail behind it.
Down
  1. 1. Force of attraction between two objects with mass pulling them together.
  2. 2. The group of planets earth is in that was created around 4 million years ago.
  3. 3. Maker of the laws of motion and universal gravitation.
  4. 8. The path of an object that is going around a star, planet, or moon.