Crossword Puzzle

2. Theory of Matter States that each type of matter is made of only one type of atom.
4. Characteristics of a substance that is observed physically or during a reaction in which the chemical composition or identity of the substance is changed.
7. Cannot be divided.
9. Subatomic particle with a negative charge found in the electron cloud surrounding the nucleus of an atom.
11. A subatomic particle found in the nucleus of an atom with a positive electrical charge.
14. A substance made of atoms that are all the same they are chemically pure substances that cannot be broken down.
15. Different types of atoms that can bond together to make molecules.
16. A large body of matter with no shape.

1. The basic unit of a chemical element.
3. Physical substances in general as distinct from mind and also spirit.
5. Any basic units of matter and energy.
6. A particle smaller than an atom.
8. A subatomic particle of about the same mass as a proton but without an electric charge, also found in the nucleus of an atom. Neutral.
10. The atom’s center it contains a cluster of protons and neutrons.
12. To push back or away by a force. The North Pole of a magnet will repel the North Pole of another magnet.
13. A force of attraction that holds atoms together in a molecule.