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Across
- 2. The passing of traits from parents to their children
- 4. To sort things into groups based on their features
- 6. A thread-like structure in cells that carries genetic information
- 8. The remains of a plant or animal from long ago preserved in rock
Down
- 1. The upward force that makes things float in water
- 3. The wearing away of land by water, wind, or ice
- 5. The tendency of an object to stay still or keep moving
- 7. A state of matter that holds its shape