Inertia

Another Newton experiment that can be done with the kids involves coins.  Big T used a stack of nickels, while Little T wanted to use pennies; both types of coins worked for our simple experiment.

We just stacked a bunch of like coins and then flicked a lone coin towards the bottom of the stack.  The "flick" has to have a little power behind it to work properly, but through some trial and error, we managed to figure it out and have fun in the process.

In the video, I say that this looks like a good boy experiment, but it

 was referred lovingly towards my boys.  Girls can have fun doing

 this experiment as well.