Baking soda and vinegar react in this movement and power STEM activity to power a boat made with recycled materials. This is a fun outdoor STEM science experiment for kids.
Water Power - Demonstrate how a hydroelectric power plant works and get wet in the process! ScienceKiddo.com
LEGO water activity for building dams and exploring the flow of water. One of the many cool ideas in the Unofficial Guide to Learning with LEGO book.
Science Fair: Renewable Energy Project for Kids: Power from Water
Create a Dam - a lot of opportunities for experimenting and exploring with nature materials with this idea!
Water activity is always a hit at my house. This paddle boat is easy to built and fun to play.
How to make your own nature paint brushes - an easy, fun and free DIY for kids and adults!
Forest Craft: How To Make A Picture Frame With Sticks @MaryAnn Nesbit I feel like we did this for craft day. And then hung them in the apartment.
Greenhouses. Ziplock bag, wet cotton balls and seeds. You can see all the plant parts. This has a printable for the "house". Although I think I might just tape the bags to the window and have a lot of them.