Science Experiments in the Kitchen with Kids

My husband is a scientist… loves all things science. He has passed along his love of experiments to the kids. They make goo, glop, ice cream, flour volcano’s, tie-dyed milk and an array of other things, but here is a neat one to try this weekend…

 

The Egg Test -

 

If an egg is dropped in a glass of water a fresh egg will sink – a bad egg will float.

 

Here’s why-

Fresh eggs have a very small air cell within the egg so when dropped into water they sink to the bottom and lay on their side. The egg typically feels quite heavy.

 

The older the egg becomes and less fresh it is, more air enters the egg. This causes the egg to float and stand upright. The smaller end of the egg will lie on the bottom of the glass and the bigger end will tip upward, towards the surface. At this point you can still eat the egg.

 

But, if the egg fully floats in the water you should dispose of it. It’s no longer fresh or edible. Bad eggs feel extraordinarily light in weight and give off a pungent smell.

 

Here’s another quick test kids love too…

 

Hard boiled or not?

Spin an egg on a flat surface. If the egg wobbles, it’s fresh because the insides are moving around. If the egg spins smoothly, it’s cooked!