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!

Hole-y Cow

Before you start this experiment, have your scientific sidekick predict what will happen when she starts pushing pencils through a water-filled bag. She’ll have the chance to (literally) poke holes in her own theory once she gives it a try, thanks to the polymer chains that keep the plastic from leaking. Get the important details to set up and run this one at Steve Spangler Science.

Shelley Massey



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

—Allison Sutcliffe