Across
- 2. Any chemical reaction where a substance burns in oxygen to produce light and heat
- 6. A combination of 2 or more elements and compounds
- 7. A form of sugar produce in photosynthesis
- 8. Describes liquids that can be mixed
- 10. The first chemical explosive
- 11. The smallest building blocks of matter
- 12. A simple chemical equation where chemicals are represented by their names
- 15. A simplified representation of solids, liquids and gases
- 17. A solid formed during a chemical change
- 18. An element with a single atom
- 21. Substances made up of only one type of atom
- 22. A substance being dissolved
Down
- 1. Describes the DNA molecule which has 2 strands twisted into a double spiral
- 3. A decrease in size
- 4. A process where 2 liquids or 2 gases mix due to the motion of their particles
- 5. A change that results in a new substance being formed
- 7. Measures the force of the gas particles on the containers walls
- 9. A change of state from solid to gas
- 13. A mixture of metals with other metals or non-metals
- 14. The starting substances in chemical reactions
- 16. Grid like structures of atoms
- 18. A tool that is used to see small things you can't see just by looking
- 19. An electrical switch used in computers to process data quickly
- 20. The minerals rich in metals like copper