Across
- 2. A state of matter that is neither liquid nor gas
- 4. It is one of the physical properties of matter, together with density
- 6. It is made up of two or more chemically bonded elements
- 8. A small piece of matter with positive electrical charge
- 11. A small piece of matter with a negative electrical charge
- 13. The smallest unit of a chemical element
- 14. A chemical substance that is made of atoms all of the same kind
- 16. A state of matter that is neither liquid or solid
- 17. A state of matter that is neither solid nor gas
Down
- 1. point The temperature at which a liquid becomes a gas
- 3. It includes the study of chemical elements, compounds and chemical reactions
- 5. The physical substance the universe is made of
- 7. point The temperature at which a liquid becomes a solid
- 9. A part of an atom that has no electrical charge
- 10. It is a synonym for "state"
- 12. The central part of an atom
- 15. point The temperature at which a solid becomes a liquid