2nd - 4th Grade Physical Science Activities : Page 5

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!