Build literacy skills while making predictions with this sink-or-float activity. It's fun to learn about new concepts in a hands-on way. This family does just that with a sink-or-float activity ...

2. Take the egg out and add salt to the water. Add the egg back in the water and watch what happens! It makes a great learning experience, as you can set hypotheses before testing out the experiment.

Materials: Egg, glass, water, salt Directions: First we need to decide if an egg is more or less dense than water. Place the egg in a glass filled with water. Does the egg sink or float?

An object will sink if it is heavy for its size (paperclip), and float if it is light for its size (log of wood). Objects are heavier or lighter depending on how dense they are (how much air they ...