Across
- 4. dry ice undergoes this change in state at room temperature
- 7. the temperature at which a substance changes from a solid to a liquid
- 8. a word that means "to have no charge"
- 9. The ____________ Model of Matter
- 10. a measure of how much matter is in a substance
- 12. the name of the particles inside an atom
- 15. this particle is the same size as a neutron
- 17. a word related to movement
- 19. a negatively charged particle in the atom
- 21. Ice ____________ on water because it is less dense
- 22. a state of matter where particles are packed but free to flow
- 24. a property relating mass and volume
- 25. The ____________ table organises all the elements currently discovered
Down
- 1. A type of property that does not change the substance being observed
- 2. the smallest building block of matter
- 3. the rapid evaporation of an entire substance
- 5. A method for measuring volume by submerging the object in water
- 6. How well a substance is able to flow
- 11. The smallest element with an atomic number of 1
- 13. changing from a gas to a liquid
- 14. a unit used to measure volume
- 16. the ability for one substance to scratch another
- 18. a word to describe all substances in the universe
- 20. the structure in the centre of the atom
- 23. a tool used by scientists to convey and predict information