Across
- 3. a substance that has a PH level lower than 7 when it's in aqueous solution
- 4. member of the family of elements composed of very reactive, colored, non-metals
- 6. radiant energy given of by the sun
- 8. a substance that has a PH level higher than 7 when it's in aqueous solution
Down
- 1. a subatomic particle that has a positive charge (+1)
- 2. a compound made from carbon and hydrogen
- 5. a subatomic particle that has a negative charge (-1)
- 7. starting substance in a chemical reaction