For our letter D science activity I followed the lead of this post and we did an exploration of Density. This was super easy to set up, and kept both kids entertained for a long time.
Let's gather our supplies:
A selection of toys and other objects, some that will sink and some that will float
A large container to fill with water
A piece of paper that says "sink" and on that says "float"
We took this activity outside because I wanted to be able to turn the kids loose to have fun without any worries about messes. We could have also done this in the bathtub and it would have worked great.The first thing we did was talk about what it means to sink or float. Then we took all the toys out of our bin while hypothesizing on how each one would behave in the water.
Water free-play is one of our favorite activities. Almost no prep, and SO much fun!