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Across
- 3. The tiny building block that makes up all living things
- 5. When a gas cools and turns back into a liquid
- 7. Something in an experiment that can be changed or measured
Down
- 1. A gas in the air that living things need to breathe
- 2. A quick back-and-forth movement
- 3. A final decision reached after studying results
- 4. A glass container used in science experiments
- 6. The tendency of an object to stay still or keep moving