Across
- 4. properties of an object that can be measured or seen without changing the matter it is made up of
- 7. is the amount of space an object occupies or takes up
- 9. the basic unit of an element
- 11. matter that has a definite volume but no definite shape
- 12. the measure of how much mass something has for its size
- 14. properties of a substance that can be observed when a substance goes through chemical change
- 18. a subatomic particle with no charge located at the center of an atom
Down
- 1. matter that has no definite shape or volume
- 2. protons and neutrons clump together at the center of an atom to form the nucleus of an atom
- 3. have specific chemical and physical properties that cannot be broken down into other substances through ordinary chemical reactions
- 5. matter that has a definite shape and volume
- 6. a kind of mixture in which one substance dissolves or seems to disappear into another substance
- 8. a substance that is formed when the atoms of two or more elements join together chemically
- 10. a substance of two or more elements or compounds that are mixed together but not chemically joined
- 13. a subatomic particle of an atom that is negatively charged and orbits the nucleus extremely fast
- 15. is the amount of matter in an object or substance
- 16. anything that takes up space and has mass
- 17. a positively charged subatomic particle located in the center of an atom