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Across
- 3. A tool that makes far-away things look closer
- 6. The central part of a cell that controls its activity
- 7. Any living thing such as a plant or animal
- 8. The upward force that makes things float in water
Down
- 1. The band of colors formed when white light is split
- 2. A curved piece of glass that bends light
- 4. The passing of traits from parents to their children
- 5. How tightly packed the matter is in something