Potato clocks and soda can robot science kits for under $10

A clock that runs on potatoes?

A robot made out of a soda can?

If you've got a kid who is a science enthusiast (or better yet, a kid who is completely science-phobic), 4M has some wonderful kits for under $10.00 that will open up the wonderful worlds of physics, chemistry, engineering etc. to him/here. 

The 4M Potato Clock kit is just $7.19 with free Prime/SuperSaver shipping.  And yes, it is an actual clock that runs on potatoes. No batteries needed, but you will need two potatoes.  

The 4M Tin Can Robot kit is just $8.99 with free Prime/SuperSaver shipping.  Turn your empty can of Dr. Pepper into a robot.  For real.  (This actually does require two batteries, btw.)

There are more 4M science kits over here. 

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