Science Friday, Take 2

Today we had a very fun Science Friday. I invited 2 homeschooling friends of mine and we did some experiments of Chemical Reactions.
First I cut an apple open and let it oxidize just a bit. I told the children that the browning is a result of a chemical reaction between the apple and the oxygen in the air. Then I showed them the good ol' vinegar and baking soda trick. Who doesn't love that one?? Then I showed them dirty pennies and how the brown-ness is caused by oxidation. We did 2 experiments using pennies--one was just letting them sit in lemon juice and seeing how clean they'd get. That was cool because we were able to correlate it with how you use lemon juice to prevent apples from browning since one of the moms had recently been making dried apples with her children. We also did an experiment that was supposed to be electrochemical plating. It didn't work how it was supposed to. Oh well, not all experiments always work!
The last one was by far the favorite. We made what we lovingly refer to as "GOOZLE"

GOOZLE RECIPE

Mix
1c. water
8oz school glue
(food coloring, if desired--we have found that less color makes it LESS MESSY!)
stir well

in separate container mix:
4tsp borax
1 1/3 c. warm water
stir to dissolve

Slowly pour glue mixture into borax mixture. Stir gently. Take out glob and knead until it dries out a bit. WHAT FUN!!