Across
- 2. Able to be hammered or bent into new shapes
- 5. a substance being dissolved
- 7. an increase in size
- 11. an electrical switch used in computers to process data quickly
- 13. the chemical property of a substance that describes how easily the substance undergoes combustion
- 15. a change of state where a gas is cooled and forms a liquid
- 17. the substances formed in chemical reactions
- 19. a substance made up of long chains of smaller units that are repeated along the chain
- 20. a process where 2 liquids or 2 gases mix due to the motion of their particles
- 21. The smallest building blocks of matter
Down
- 1. a substance that dissolves another substance
- 2. Any combination of 2 or more elements and compounds
- 3. an alloy of copper and tin that is much harder than pure copper
- 4. Substances made up of only one atom
- 6. the first chemical explosive; made up of a mixture of saltpetre, sulfur and carbon
- 8. a decrease in size
- 9. the starting substances in chemical reactions
- 10. Substances made of identical moluecules with 2 or more types of atoms
- 12. a form of sugar that is produced during photosynthesis and used in respiration to produce energy
- 14. a mixture where the substances are mixed on the atomic level
- 16. a change of state from solid to gas
- 18. Easily crumbled or shattered