Friday, March 9, 2012

The Incredible Growing Green Egg

This is the last of our egg demonstration installments. You can see our "disappearing egg" demonstration here and our "shrinking egg" here.  This project, the incredible growing green egg,  is again demonstrating osmosis in the semipermeable membrane of our egg.  This time instead of moving water out of the egg, we moved it into the egg. 

egg experiment, the incredible growing green egg

A shrunken egg
large jar or bowl
green food coloring

Little J placed our shrunken egg in a jar and covered it with water.  We then added green food coloring until the water was a dark green.  Fast forward 14 hours and you can see our egg has swelled into a large green egg.

egg experiment 

For a little added fun, Little J pricked the egg with a toothpick and a geyser of green water shot out of it.  I wasn't quite ready with the camera and missed most of it, but it was a pretty high stream (be ready with towels)!

The incredible growing green egg, egg experiments 


Kristina said...

That is too cool! Love all the science experiments you've been blogging about-- ours never seem to turn out!

Stopping by from TGIF!

Julie@teachinggoodeaters said...

I honestly had no idea that you could do so many fun things with eggs!! I'm definitely going to have to try some of these experiments!

Ticia said...

Oh man think of all the fun things we can now do with eggs come Easter!

Raising a Happy Child said...

A green egg experiment is perfect for Dr Seuss' birthday! Looks like a lot of fun too.

Beth ( said...

Soooooooo cool! You always come up with the neatest ideas!! Thanks for linking up to TGIF! See you again tomorrow,