Across
- 3. all substances made by this small particles
- 4. First element in periodic table
- 7. The substances produced when two or more elements combine in chemical reaction
- 9. Element that name like Albert Einstein
Down
- 1. Symbol is Fe
- 2. Compound of Hydrogen and oxygen
- 4. First element in the periodic table
- 5. Symbol of Gold
- 6. Second element in periodic table
- 8. One way to make chemical reaction that use heat