1. Matter is anything that occupies space and has a mass
What is Matter?
Matter is anything that occupies space and has a mass
Mass and weight are same on earth’s surface but may vary earth vs moon

2. Classification of matter
According to the state(solids,liquids gases and plasma)
According to its composition(elements,Compounds, and mixtures(homogeneous and heterogeneous)

3. Elements and Compounds
Simplest form of matter that has a unique set of properties
Examples: C,N,O
Compounds
Composed of two or more elements in a definite proportion
Examples: H2O, SO2,CO2
Compounds can be break down in to simple substances by chemical means

5. States of matter Solids Liquids Gases Has a definite shape
Has indefinite shape
No definite shape
Definite volume
No definite volume
Not easily compressed
Easily compressed

7. Cotton Candy – Sugar is composed of 3 substances carbon, Hydrogen and Oxygen

8. Chemical Symbols – use to abbreviate elements
Hydrogen –H
Tungsten –W - Wolfram
Mercury – Hg - Hydrargyrum
Note: Elements derive their name from English/Latin words

9. Mixtures – composition of two or more substances
Homogeneous
Has a uniform composition through out
Individual components can not be identified
Example : salt dissolved in water
Heterogeneous
Does not have a uniform composition
Individual components can be identified
Example: mixture of salt and sand