Inside Out Easter Eggs

Easter is over you say? Why didn’t I post this before Easter you ask? Good point and good question but this was so fun that I couldn’t bring myself to wait until NEXT Easter to post about it.

I didn’t exactly set out to invent inside out Easter eggs. We’re studying cell biology and cellular processes right now in science and the “Eggcellent Ideas for Osmosis and Diffusion” experiment from the Science Spot Classroom seemed like a fun way to demonstrate the process.

OLYMPUS DIGITAL CAMERA

How many science experiments start with vinegar?

First we made the classic naked egg by soaking some eggs in vinegar to dissolve their shell

Look ma, no shell!

Look ma, no shell!

Fun stuff. It took a couple of days for the shell to pretty much completely dissolve.

Yuck, corn syrup.

Yuck, corn syrup.

Then we soaked the eggs in corn syrup because the thick viscous stuff can’t travel through the semi-permeable egg membrane and the higher water content inside moves out of the egg via osmosis (don’t I sound all scientific!) until the egg is completely deflated but still completely in tact.

That is one deflated egg!

That is one deflated egg!

After our eggs were completely deflated we poured out the corn syrup and rinsed them off and set out to reverse the Osmosis process by soaking them in water. To make it extra fun we put a different color of food coloring into each cup.

It took about an hour for them to go from deflated to looking like real eggs again!

It took about an hour for them to go from deflated to looking like real eggs again!

And there you have it–I invented inside out Easter eggs! Or inside out rainbow eggs to avoid a holiday theme.

Aren't they pretty?

Aren’t they pretty?

They even bounce.

Ok, they sort of bounce.

Ok, they sort of bounce.

I kind of wish we’d been more scientific and measured and weighed the eggs throughout the process like the website recommends but the kids definitely learned how liquid wants to move “from an area of high concentration to an area of low concentration” with this experiment.

Advertisements

2 thoughts on “Inside Out Easter Eggs

  1. Pingback: The HUGE list of Rainbow Resources

  2. Pingback: EASTER DIY! 9 Clever activities to do. | Keiko Kenzo and The Wizkid Club

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s