When you think backyard, you think playing, relaxing and grilling, right? But this summer, think “testing hypotheses” too. We couldn’t think of a better area than your spacious, self-cleaning (thanks, rain!) yard to set up experiments all summer long. Flip through to find one to try!

Rock-et

Erica at What Do We Do All Day proves once again that science doesn’t have to be boring, with this exciting experiment that’s a study in propulsion as much as it is a fast-paced racing game. Use her helpful suggestions to really delve into (and add scientific challenges to) this project. And they’re off!

photo: Jason Graham via Flickr

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Which one of these experiments looks fun to you? Leave your pick in a comment below. 

—Allison Sutcliffe