Read the clue. Fill in the crossword puzzle with the correct word. The crossword puzzle will turn green if you are correct! Take a picture of the completed puzzle to show your teacher.
1. The temperature at which a solid becomes a liquid
2. Smallest unit of matter; the basic building block of matter
3. A property of matter that can be observed and measured only by causing a chemical change
4. one of the forms that matter can take, including solid, liquid, and gas
5. The temperature at which a liquid becomes a solid
6. When atoms in substances are rearranged to form new substances
7. A trait that can be observed and measured
8. A property of matter that can be observed and measured without changing the substance
9. The temperature at which a liquid becomes a gas
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