October 3, 2011

Today in class we identified the differences between solids, liquids, and gasses. On a sheet of notebook paper we drew how the particles moved and how the particles were arranged. On pages 58 & 59 you can find the pictures of all 3 examples.

• Solids - closely arranged, vibrate slowly


• Liquids - more spread out, more energy ( slide & glide)


• Gases - very spread out, lots of energy, more collisions = pressure

We also talked about the two types of solids :

• Amorphous - unorganized solid


• Crystalline - organized solid

We then tested the the different states of matter in 3 syringes:

• solids have a definite shape and volume.


• liquids have a definite volume but not a definite shape.


• gases do not have a definite volume it's called indefinite volume, you never know how much is in a container unless it is sealed off.

We finished the class with poll everywhere!

• Conductivity is a phisical property!