Across
- 5. A substance that speeds up a chemical reaction
- 7. Results in which one or more new substances are formed from the previous. The result has new chemical and physical properties.
- 8. The pH is more than 7.
- 10. The elements that make up the staircase on the periodic table.
- 13. A chemical property that occurs when a solid substance forms from two solutions that are chemically combined.
- 16. The ability for a substance to dissolve in a liquid.
- 17. An abbreviation for an element usually made of one or two letters.
Down
- 1. Can be observed and measured without changing the composition of the substance.
- 2. Only changes the physical properties of a substance. It does not change the overall composition.
- 3. Located on the right side of the staircase on the periodic table.
- 4. When a substance undergoes chemical changes.
- 6. Located on the left side of the staircase on the periodic table.
- 7. When a substance or material can conduct heat or electricity.
- 9. The pH is less than 7.
- 11. Made up of the symbols of the elements composing the substance.
- 12. Can be recognized when they undergo a chemical change or a change in composition.
- 14. A type of scale that is often used to classify substances.
- 15. A table of elements.