Wednesday, February 15, 2012

Don't Forget!

Don't forget your materials for the egg drop!  
You will need these for next week's meeting (2/22)

Remember: You don't want your egg to end up looking like this!


Thursday, February 9, 2012

Winter Green S.T.E.M. Club Members

Edible Aquifers

Yesterday, we learned all about aquifers. We talked about the different layers of the ground, and how groundwater is stored. We used gummy bears, chocolate chips, and crushed cookies to represent the sand and gravel found deep in the earth. We then "made it rain" using Sprite (which represented our groundwater.) We "protected" our groundwater with a confining layer (ice cream) then added more gravel and sand and soil (sprinkles).

Next, we put a few drops of food coloring into our aquifer. This represents pollution. At first it didn't do much but set on top of the confining layer. However, once we "dug a well" (put a straw into our aquifer), and started "pumping the well" we noticed the pollution started seeping down into our groundwater! YUCK! The it "rained" again, and the pollution spread EVERYWHERE!

So what did we learn??? To protect our Earth, of course! It is so easy to pollute our drinking water, so we need to be extra careful.




 Before we polluted our aquifer
After the pollution!

Pictures!

For some reason, Smilebox and our blog do not want to communicate! I have tried and tried, and I just can't get them to work! So... click STEM Club Pictures to see some recent pictures from our last couple of meetings. Hopefully that will work!