The Coolest Machine Ever!

Jessi and Squeaks have a new invention to show you! They built it using what they know about simple machines and with a little inspiration from a cartoonist named Rube Goldberg!
#science #kids #engineering
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SOURCES:
www.livescienc...
hyperphysics.ph...
wonderopolis.o...
media.rubegold...
www.myips.org/...
contraptionmake...