Bathtime Education

Cesca can spend upwards of two hours playing in the bath. Seriously, it is ridiculous! So I've started working on ways to incorporate some of her education right into her bath play. Here's what I've come up with so far:

1. Color mixing - those colored bath tabs are great for teaching secondary colors and some tertiary colors. 
2. Buoyancy - what floats or sinks?
3. Bath crayons. I love the one from Alex Toys!
4. Bath paints - mix shaving cream with a bit of Liquid Watercolors and you have a great, easy-to-clean bath paint!
5. Magnets - magnets work in water the same as they do on dry land. That in itself is worth learning, but you can also do almost any magnet experiment in the tub.
6. Bath letters - I will hear Cesca sounding out words (both real ones and made up ones) that she has spelled on the side of her tub
7. Pretend play - a set of three monster squirt toys and one play penguin and she can spend an hour acting out games with them!
8. Swim practice - ok, so she can't actually swim in the tub, but she can practice putting her face in and blowing bubbles!
9. Ice - floating/sinking, melting, temperature... a bin of ice provides a surprising amount of entertainment.
10. Measuring - I leave a 2 cup plastic liquid measuring cup in the bath for measuring and pouring. As a bonus, I can use it to rinse her hair :)
11. Water flow - in addition to the measuring cup, we always have at least one empty bottle so she can practice pouring from different sized spouts
12. Air pressure and vacuums - turn a cup upside down and push it straight down in the water. Watch how the water does not fill up the cup because it is full of air!
13. Air pressure and vacuums part 2 - fill a cup to the brim with water, place a smooth piece of cardboard over the top so it "seals" at the edge of the cup and make sure there are NO air bubbles inside, then turn the cup upside down while holding the cardboard in place. Slowly take away the hand holding on the cardboard and observe as the cardboard stays in place and the water does not pour out!

If anyone has other ideas, please let me know!