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Chem 201: Aluminum

The principle ore of aluminum is bauxite.

bauxite

Bauxite Ore Contains Aluminum Hydroxide

Here are some interesting links to information about aluminum:

http://www.periodicvideos.com/videos/013.htm (from the Periodic Table of Videos)

http://www.periodicvideos.com/videos/mv_redsludge.htm (disaster with aluminum processing)

Today’s handout:

http://justonly.com/chemistry/chem201/students/handouts/rxn_al_cu.pdf

Physical Science 112: Newton’s Laws of Motion

Students carried out fun activities to learn more about Newton’s Laws of Motion on Wednesday. The first law of motion, that objects in motion remain in motion and objects at rest remain at rest unless acted upon by a force is illustrated by this task of removing the paper disk without distrubing the balanced coin:

coin on paper disk on wooden stand

A relative of the tablecloth trick...

The law of inertia can be used to determine which egg is raw and which egg is hard boiled simply by spinning the eggs:

spinning eggs

spinning eggs: which one is raw?

Newton’s third law states that for every action there is an equal and opposite reaction. Here a balloon is travelling along a string propelled by the air that is coming out of it:

Balloon on a string

Balloon on a string

 

 


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