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2
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8
Across
- 2. A mountain with an opening that can erupt hot lava
- 6. When one substance soaks up or takes in another
- 7. The part of an experiment that stays the same for comparison
- 8. The upward force that makes things float in water
Down
- 1. The tendency of an object to stay still or keep moving
- 3. A gas in the air that living things need to breathe
- 4. The speed of something in a given direction
- 5. The act of moving or changing position