1. Mr. Fox Science Class Wassamatter wit you?

2. What is Matter?
Matter – the stuff that makes up EVERYTHING in the known universe.
It can be found in three different states
Solid – atoms are tightly packed together. Definite shape and volume
Liquid – atoms aren’t as tightly packed together. Definite volume; indefinite shape
Gas – atoms that are loosely together. Indefinite volume and shape

4. Temperature Scales
Celsius – based off the freezing and boiling point of water. (°C)
Fahrenheit – based off the freezing point of human blood. (°F)
Kelvin – based off of absolute zero. (K)
We use degrees for everything except Kelvin.

5. Characteristic Properties
These properties NEVER CHANGE for a given substance and are used to identify unknown matter.
Examples: hardness of materials, density, boiling point, melting point

6. Boiling Point
Boiling Point - the temperature at which a substance boils.
This is a change of state between liquid and gas
Can tell the difference between liquids with the color.

7. Melting point Melting Point – temperature at which a substance melts.
This is a change of state between solid and liquid.
Once again can tell the difference between metals of similar color by this.

8. Changes in Matter 2 types
Physical change – alter in the form of a substance, but not it’s identity or it’s chemical makeup.
Ex: ripping, tearing, crumpling, changing states
Chemical Change – one or more substances combining or decomposing to form new substances.
Ex: burning wood, rusting of iron, caramelizing sugar

9. Types of Matter 2 types of matter
1. Mixture – consists of two or more substances that are mixed together but not chemically combined.
Ex: Italian dressing, sand and iron filings
Solution – ‘best mixed’ of all possible mixtures
Solvent – the substance that does the dissolving
Solute – the substance that gets dissolved

10. Types of Matter
2. Pure substances – made of only one kind of matter and has definite properties.
Elements – substances that cannot be broken down into smaller substances by any chemical means.
Ex: Gold, Silver, fluorine, chlorine
Compound – a pure substance formed from chemical combinations of two or more different elements.
Ex: water (H2O), Carbon Dioxide (CO2)