Properties Of Matter

• Chemistry is the study of properties and behavior of matter.
• All the physical stuff in our universe is called matter. Matter is anything that has mass and occupies space.
• ENERGY IS NOT MATTER!
• There are three basic forms of matter on the Earth.

1. Solids-holds shape and fixed volume
2. Liquids-shape of container, free surface, and fixed volume
3. Gases- shape of container and volume of container

• Is there more than three states of matter?

Yes there is more than three states of matter and its plasma, Plasma is by far the most common form of matter. Plasma is in the stars and outer space, it makes up over 99% of the visible universe.

• Substance- a substance is matter of a particular kind.
• Each substance has its own unique blend of properties, each substance is different from one another. The purest or simplest form of a substance is an element.
• There are 117 known elements. 94 of them occur natural.
• A pure substance containing more than one different element is a compound.
• Elements in compounds are combined in ratios.
• A molecule is a substance of two or more atoms in a definite arrangement held together by a chemical bond.

A diatomic molecule contains only two atoms.
A polyatomic molecule contains more than two atoms.

• A mixture consists of two or more different substances physically combined.

For example a salad is a mixture you have all the different vegetables, you can separate each vegetable from each other.

• There are two types major types of mixtures:

1. Heterogenous- which means "different"
2. Homogenous- which means "the same"

• A solution is a special type of mixture.
• A solution is a homogeneous mixture that combines a solute and solvent. 

Solute- the solid part that gets dissolved.  For Ex: salt and sugar
Solvent- the liquid part that does the dissolving.  For Ex: water

• Intensive properties do not depend on the amount of matter present

Example- Density, chemical composition, temperature, and flammability

• Extensive properties depend upon the amount of matter that is present.

Example- Mass, volume, and weight

• A chemical change is a reaction that transforms a substance into a new substance or substances with different properties.

For example: A match burning, an explosion, and rust.

• Anything more dense than water will sink
• Anything less dense than water will float.

• Scientific notation is a way of expressing very large or small numbers which are awkward to say and write.

Example: 51,300 ====> Scientific notation- 5.13x10^4

This is where I got my information

http://www.watchknowlearn.org/Video.aspx?VideoID=5236