Across
- 1. A combination of substances that keep their own properties.
- 6. A change that does not make a new substance (like melting ice).
- 8. A force that holds atoms together in a molecule.
- 10. Matter is not created or destroyed in a chemical reaction.
- 12. A change that makes a new substance (like rusting or burning).
- 13. A new substance formed in a chemical reaction.
- 14. The smallest building block of matter.
- 16. Observations or data that help explain what is happening in a reaction.
- 18. of Matter The form matter takes (solid, liquid, gas).
Down
- 2. A reaction that releases energy (feels warm or hot)
- 3. A pure substance made of only one type of atom.
- 4. Reaction A process where substances change into new substances.
- 5. A reaction that absorbs energy (feels cool).
- 7. The ability to cause change (often needed or released in reactions).
- 9. Two or more atoms joined together.
- 11. A starting substance in a chemical reaction.
- 12. A substance made of different kinds of atoms bonded together.
- 13. A characteristic of a substance (like color, hardness, or boiling point).
- 15. A drawing, diagram, or object that helps explain something too small or complex to see directly.
- 17. How much matter is in an object.