Across
- 3. the study of composition, structure and properties of matter and the changes it undergoes
- 4. matter with variable composition made from 2 or more substances
- 7. process that releases energy into the surroundings
- 9. very high kinetic energy particles collide with enough energy to break into charged particles
- 11. matter with constant composition all partials have the same properties
- 13. have properties of metals and non metals
- 15. many are gases poor conductors and brittle
Down
- 1. partials of matter are always in motion
- 2. anything that has both mass and volume
- 5. a process that absorbs energy from the surroundings
- 6. amount of space that is occupied
- 8. a substance made from 2 or more elements chemically combined
- 10. mostly solids at room temperature
- 12. a substance made up of atoms with the same atomic number
- 14. amount of matter