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Across
- 4. A sudden shaking of the ground caused by movements deep inside Earth
- 8. A material that does not let electricity or heat pass through easily
Down
- 1. All the chemical processes in your body that keep you alive
- 2. The amount of matter in an object
- 3. A chemical change when substances interact
- 5. The natural home of an animal or plant
- 6. To sort things into groups based on their features
- 7. The speed of something in a given direction