Across
- 4. the amount of matter it substance that makes up an object
- 5. property something that changes and can not be turned back to its original form
- 8. the amount of space occupied by any three-dimensional solid
- 9. property a characteristic of a substance that can be observed or measured without changing the identity of the substance
- 10. a substance whose atoms all have the same number of protons
- 11. Something that has mass
- 12. The smallest part of a substance that cannot be broken down chemically
- 13. number the number of an element
Down
- 1. property something that changes but it can be turned back to its original form
- 2. how heavy something is for its size
- 3. one of the three subatomic particles that make up an atom
- 4. something that has mass and takes up space
- 5. symbol a one- or two-letter designation of an element
- 6. the result of combining 2 or more things together and each contain their
- 7. a subatomic particle that is found in all atoms.
- 9. a subatomic particle with a positive electrical charge