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Across
- 1. When one substance soaks up or takes in another
- 4. The band of colors formed when white light is split
- 6. A sample of something used for study
- 8. A state of matter that holds its shape
- 9. The central part of a cell that controls its activity
- 10. To find the size, amount, or degree of something
Down
- 2. The bending of light as it passes from one material to another
- 3. A state of matter that spreads to fill any space
- 5. A form of energy that makes things warm
- 7. The amount of space something takes up