IPC Vocabulary

1. two or more substances that have been combined, with each substance keeping its original chemical identity the same
4. A pull or a push on something
7. Describes objects which light passes straight through
8. positively charged particle in an atom
10. molecule which contains at least two different elements combined
12. in a chemical reaction, the substance you start with
13. The distance between each sound wave; determines how high or low a sound is
14. smallest particle of an element that still keeps the properties of that element
15. particle in an atom which has no charge at all

2. Friction between two objects that keeps them from sliding across each other
3. Negatively charged particle in an atom
4. A force which slows down moving objects on earth
5. Describes objects through which light can pass, but is scattered on the way through
6. How tall a sound wave is; measures “loudness” of a sound
9. substance which speeds up a chemical reaction without being used up in the process
11. Describes objects through which light cannot pass at all