Testing the “5 Second Rule”

Instructor shows students petri dish

Would you eat food that you dropped on the floor if you picked it up in less than five seconds? People call it “the five second rule” but is it true or false?


More Clips

lemon battery

Can You Get Power from a Lemon?


Young girl attempting to blow a bubble in a square frame

How to Make Square Bubbles


Several young students putting their hands in a mixture of corn starch and water



Instructor and young female student examine a tooth

Testing Tooth Decay


Instructor holding a pizza box, aluminum foil, and other items to make a solar oven

How To Make a Solar Oven


Young girl shows water bottle dyed green from the food coloring in her mouth

The Science of Backwash



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