Across
- 2. a closed path for electrical current
- 4. a force that slows moving objects and it causes things to get hot
- 9. a change in which one or more substances are changed into a new substance
- 11. combination of two or more substances that keep their identities
- 12. forces acting on an object that are not equal and opposite
- 14. a rapid back and forth movement that produces sound
- 15. movement of heat between two objects that are touching
Down
- 1. a change in matter in which a new substance is not formed
- 3. bounce back from a surface
- 5. bending of a wave when it enters a different object
- 6. an electrical circuit in which the continuity is broken so that current does not flow
- 7. forces acting on an object that are equal and opposite
- 8. how high or low a sound is
- 10. to take in
- 13. to mix a dry ingredient with a liquid and it becomes part of the liquid