Egg in Saltwater

egg in saltwater

I love ridiculously easy science experiments.  I don’t want to create a shopping list just to do something with my kids.  I know, sometimes it is worth.  But most times I just want to grab a few things around the kitchen and be done.

Materials:

  • egg
  • salt
  • water
  • glass or bowl

This is a great activity to do after “sink or float.”  Hypothesize if an egg will float in water.  Test the hypothesis.  Then add salt and try it again.  Hint- you have to add LOTS of salt!  How does it work?  A raw egg has more density than tap water.  Adding salt increases the density of water until at some point it is greater than the egg.  Then the egg floats.  Try the experiment with other materials.  Talk about swimming in saltwater vs. freshwater.

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Spring Picture Sequencing Activity

Okay, so spring is almost over.  Don’t worry.  You can do this activity any time.  Just take pictures of something growing and changing, then have your kids put the pictures in order.  They get to witness the changes in person, then review it with the pictures.  Try taking pictures of flowers, trees, bushes, plants, or grass in your yard.  Or take it inside and plant a seed in a flower pot.  If you want to get all science-y (I’m sure that is a word), take the pictures at the same time each day.  Obviously, I am not a scientist.

spring picture ordering activity