Across
- 4. The change from solid to gas
- 5. The change from liquid to gas
- 8. An alloy of copper+tin that is harder than copper
- 11. An increase in size
- 12. The substance formed in chemical reactions
- 13. The starting substance in chemical reactions
- 14. The change from liquid to solid
- 15. Minerals rich in metals
- 17. Any of a class of natural or synthetic substances composed of very large molecules
- 18. The characteristics of a substance
Down
- 1. Able to be hammered or bent into a new shape
- 2. The smallest building blocks of matter
- 3. A substance being dissolved
- 4. An alloy made of iron+carbon
- 6. Mixture of a metal with other metals or non-metals
- 7. Have two types of chemically bonded atoms
- 9. Shiny
- 10. A simplified model of the states ofmatter
- 16. A substance that dissolves another substance