1. Why did we explore with the balloons????
So………..
Why did we explore with the balloons????

2. Look around you. Wherever you are, you are surrounded by “stuff
Look around you.  Wherever you are, you are surrounded by “stuff.”  But a good scientist doesn’t go around calling stuff, “stuff”!  That’s too simple.  Instead, a really good scientist calls all this stuff we are surrounded by, “matter”.   So what exactly is matter... besides being “stuff”? 

3. Matter is anything that:
(1) takes up space “has volume” (mL, L, etc.) and
(2) has mass (g) and weight (lb, kg, etc).
If an object has mass – it WILL have weight (only if there is gravity)
Because….
Weight is the result of the EFFECT of gravity on an object’s mass!

4. All matter on earth may be classified as either:
Reminder….
All matter on earth may be classified as either:
solids
liquids
or gases 
…..and…these are known as: “the three states of matter”

5. Gases are one state of matter. 
Since all matter must have mass and take up space, if gases are matter, then they MUST have mass and take up space! 

6. Excerpted/Adapted from: The Science Notebook" Copyright 2008-2013 - Norman Young