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Across
- 1. A unit of information that passes traits from parents to children
- 3. To sort things into groups based on their features
- 5. The passing of traits from parents to their children
- 6. The path water takes as it moves between Earth and sky
- 7. The speed of something in a given direction
Down
- 1. A state of matter that spreads to fill any space
- 2. A pure substance made of only one type of atom
- 4. The distance between one wave peak and the next