Matter
Across
- 1. an element that has the abbreviation Cu on the periodic table
- 3. the substance made up of the elements hydrogen and oxygen
- 5. anything that takes up space and mass
- 6. an element that is a part of the air we breathe
- 7. the teeny tiny particles that make up matter
Down
- 2. the different types of atoms
- 4. the chart that shows all the different atoms in the world