Wednesday, June 10, 2009

Classifying Matter...

Mixture
-two of more substances that are not chemically combined with each other and can be seperated by physical means. The substance in a mixture retain their individual properties.

Solutions
-a special kind of mixture where one substance dissolves in another

Elements
-simplest form of a pure substance. They cannot be broken down into anything else by physical or chemical means.

Compounds
-pure substances that are the unions of two or more elements. They cannot be broken into simpler substances by chemical means.

Heterogeneous Mixtures
-least mixed
-large particles

Homogeneous Mixtures
-most mixed
-"well mixed"
- appears to be uniform (the same) throughout
-small particles

Colloids
-particles mixed together/ not dissolved
-large particles/ permanently suspended
-will not separate upon standing
-Ex.Shaving cream; jello

Solutions
-one substance dissolves into another
-(homogeneous mixture)
-best mixed
-have solute and solvent
*Solution=When 1 substance dissolves into another
*Solute=Being dissolved
*Solvent=Thing dissolving solute

Elements
-the simplest purest substance
-Atoms together=element
-combines together
-element+element=compound
Example: Making brownies (:
*ingredients=elements
brownie=compound

Compounds
-More than 1 element
-pure substance
-Ex: Water = hydrogen+oxygen

Alloys
-metals dissolved into metals
-pure substance (element)

Types of Solutions
Solute,Solvent,Example:
Gas+Gas=Air (O in N)
Gas+Liquid=Soda Water (CO2 in H2O)
Solid+Liquid=Ocean Water (Salt in H2O)
Solid+Solid=Gold Jewlery(Cu in Au)

Monday, June 1, 2009

Global Economic Downturn


Global Economic Downturn
EIA-Energy Information Administration
IPCC-Intergovernmental Panel on Climate Change

I believe that the more people really don't care about this issue the more we are in danger. Just like how if 1 German was caught helping a Jewish person during the time of the Nazis, then many Germans including that 1 person would get killed even if they were innocent.

There maybe that 1 person who is killing our planet and once that action has taken into effect, it could cause harm to many individuals who are innocent and really care about living on this planet. 

Video:
Made by: Me
Song: The Man Who Can't be Moved-The Script
Resources: 
http://www.eia.doe.gov/
http://www.reuters.com/
http://www.ipcc.ch/

iMovie