Azariah's Science Crossword Puzzle

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Across
  1. 3. The opposite of gravity.
  2. 6. This reduces drag.
  3. 8. Most of the time, animals walk in this direction.
Down
  1. 1. You do this when you stand.
  2. 2. The higher it is, the lower it gets. And the lower it is, the higher it gets.
  3. 4. What is outside and is used to design real life things.
  4. 5. Objects land at the same time with this.
  5. 7. This uses air resistance.