Across
- 3. Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together.
- 6. Change When a substance combines with another to form a new substance.
- 7. Travels in narrow beams called rays.
- 11. The material, or matter, of which something is made
- 12. Can make things move, change shape or change their speed.
Down
- 1. Light travels as this.
- 2. The waves that moves in straight lines through space.
- 4. Transferred in waves through the frequency of particles.
- 5. The waves that move on top of water.
- 7. Change A change affecting the form of a chemical substance.
- 8. The waves that travels through air and allow us to hear sound.
- 9. A group of atoms bonded together.
- 10. The basic unit of a chemical element.