I love how this book puts STEM concepts into simple terms for little readers. The children learn that objects float or sink based on their density. “Everything is made of molecules… They are very, very tiny. The closer the molecules are packed together, the denser the object.” That quote is probably the most technical part of the entire book. The rest of it is mostly simple statements about how a marble will sink, but a ping pong ball will float. A sponge will first absorb the water and then sink.

The children in the book build boats out of objects that can float and they have a boat race. The boats are made out of tin foil, milk cartons, and plastic bowls. The boat with the biggest sails and a hull that is pointed at the front will sail the fastest.
I love the cute illustrations depicting how the children conduct their water experiments. The colors are bright, and it’s very clear what the children are doing, so that the reader could easily recreate the experiments.

It would be so much fun to use this book to teach a child about water and density, and then do all the experiments and crafts together and have a boat race!

Disclaimer: I received a copy of this book from the publisher in exchange for a free and honest review. All the opinions stated here are my own true thoughts, and are not influenced by anyone.