More ideas from Trenduk
Use a balloon and a recycled plastic tray and make The Best Balloon Boat. Try it and see if you can make a boat that sinks or floats. Try different shapes to see which is the fastest.

The Best Balloon Boat is the coolest boat that you've ever seen. While you can't actually ride on this recycled craft, you can watch it zoom across the water right in front of you. See if you've made a boat that floats or sinks.

Boat Craft for Kids to Make from Juice Boxes that Really Floats

Juice boxes made into a boat craft for kids to play with! Find out how to make a boat craft for kids using something you're probably throwing away.