Monday, June 8, 2009 - 4B

Quiz on vocabulary

Review video on Periodic Table

Review demo of lighting magnesium - required shavings - could not light the solid bar
Important result - crumbling (increasing surface area) increases the rate of reaction.

Alka-Seltzer Lab
Lab Title: Factors affecting the rates of reaction
Have students draw data table in notebooks using a ruler

Cold water
Room temp
Hot water
Crumble (hot water)

Measure time for reaction.

Material List
1 plastic 10 ml graduated cylinder
1 film canister with lid
1 alka-seltzer (break into 4 equal pieces)
1 stopwatch

Procedure
Fill the 10 ml grad cylinder to the brim (quicker than measuring out 10 ml)
Pour into the film canister
Drop in Alka-Seltzer and quickly cap
Time until reaction occurs
Record data

MUST WEAR GOGGLES

Show video - Physical Science in Action - Atoms and Molecules
Go to review stage and then have student write down important notes.