Here are a couple of things that might be interesting for a little quiet time over the holiday period:
1. A golf game (http://www.spaceweathercenter.org/interactives/mmg.html) where you have to shoot a charged "ball" through a combination of electric and magnetic fields, aiming at a "hole". Once the magnetic fields are on, it's excitingly non-intuituive. NB. requires Flash.
2. A simulation (https://in-the-sky.org/physics/balls.php) of gas particles in motion under gravity. You can adjust their sizes and masses, and the system temperature, and then watch how the move, and their height and speed distributions.