Wednesday, October 13, 2010

Science 9/29/10

Bell Question:  How do all the ingredients in Sprite mix together?
-All the ingredients in Sprite mix together because of the spacing in between the molecules.

Signs of a Chemical Reaction:
-exothermic heat reaction
- color change
-gas given off
- new product or item

Precipitate- The solid formed as a result of a chemical reaction

Plasma- Charged gases



HISTORY   LESSON
1600s- The atom developed by the Greeks
Atomos- smallest indivisible particle




1800s- Dalton- views of the atom
Dalton's Views:
1. Atoms are the smallest thing out there
2. Atoms make elements
3. Atoms of similar elements are similar
4. Atoms of different elements are different

1900s- Thomson- Given credit for the electron




No comments:

Post a Comment