Why Does a Boat Float?

A very large and heavy boat floats on the water, but a tiny penny does not.  Why is that?   Check out this article with information and activities.    Why Does a Boat Float, but Not a Penny?


2834 Beetles


Will My Skin Wear Out?




Is It Physics or is it an Optical Illusion?

Add a little fun to your 4th Grade Physical Science Curriculum with optical illusions.  Check out the video here.  Then discuss optical illusions and have your kids come up with their own.  Optical illusions seem like fun entertainment, but in reality it can increase focus.

A fun post on SloDive.  or on Blogspot.