Why don't you make a flip flop? :)

A walk around a toy shop always gives me an idea or two for yet another science challenge.

Here's one that has become one of my favorite activities with 
young scientists.

The magical

FLIP FLOP machine!!

All you need is glue, marble, and a pair of scissors. 
Then,

·      Cut out the shape and fold outwards on the dotted lines

·      Fold over and glue the ends marked X

·      Place a marble in the middle

·      Glue the final end of the paper

·      There you have it!

·      Hold it in the palm of your hand and,

·       What happens?

Try launching it off a ramp. It's GREAT!