Across
- 4. Multiple elements making a new subtance
- 6. A reaction to the stimuli
- 9. A formula showing all the elements in a new substance
- 10. A internal or external action
- 11. A reaction on the chemical level
- 12. A singular atom
Down
- 1. They make up everything
- 2. A number showing how many atoms of an element there are
- 3. A change in physical form
- 5. A table showing all elements
- 7. A change in chemical form
- 8. A plant reacting to light