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Across
- 2. When one substance soaks up or takes in another
- 4. The bending of light as it passes from one material to another
- 6. A push or pull that can change how something moves
- 7. A substance made of two or more elements bonded together
- 8. The wearing away of land by water, wind, or ice
- 9. A material that electricity or heat can pass through easily
Down
- 1. Two or more substances mixed together but not chemically joined
- 3. The power that makes things move or change
- 5. A mixture where one substance dissolves completely in another