Across
- 4. a small gas burner used as lab equipment
- 6. the smallest particle of an element
- 8. a small portion of matter
- 11. anything that occupies space and has mass
- 12. abbreviations for chemical elements
- 14. a table of chemical elements
- 15. a small glass tube used for experiments in science
Down
- 1. the amount of space occupied by a substance
- 2. substance containing only one type of atom
- 3. substance containing two or more different elements
- 5. a scientific procedure to test something
- 7. the number of protons in the nucleus of an atom
- 9. a row of elements in the periodic table
- 10. a column of elements in the periodic table
- 11. number of protons and neutrons in an atomic nucleus
- 13. two or more atoms chemically joined