Across
- 4. relative size of things
- 6. ending substance during a chemical reaction
- 8. substance that is added to soil
- 9. starting substance of a chemical reaction
- 10. group of atoms joined together
Down
- 1. object, diagram, computer program
- 2. made of all the same atoms or groups of atoms
- 3. observations and measurement of a substance
- 5. tiny pieces that all matter is made of
- 7. change the order of something
- 11. able to cause damage