SEPTEMBER 27 -- MARCUS LU

Overview of Material covered in class:
- Matter. What is it?
- Physical and Chemical changes
- properties of solids, gasses, liquids
- Quiz on unit conversions

Notes:  
Matter:  
Matter is everything that has mass and takes up space ( volume ) . There are two types of matter , PURE SUBSTANCES, and MIXTURES. 
Physical Change
a physical change is a change where no new substance is formed.  These types of changes are also reversible
-Chemical Change
a chemical change is a change in which a new substance is produced.  These types of changes are irreversible
SOLIDS: solids do not change shape very easily.  They have little change when exposed to heat
LIQUIDS: Liquids take the shape of their container, and change slightly under heat
GASSES:  Gasses take the shape of their container, and drastically change when heated.


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