Science Week 9: Simple Machines

Welcome to a particularly video-linked heavy edition of our weekly science post.  I decidedly did not want to do science for that day.  Yet somehow it turned out to be a very successful science day.  Go figure.

Simple machines is a topic we had previously done with our co-op last year as part of a larger unit on tools.  Below, you can see Mushroom showing off his ride for “The Screw” on the day we did it.  The kids all made an amusement park for the little plastic figures based on different simple machines then played with them on the various rides.

There were plenty of video resources for simple machines.  First of all, we watched the excellent Bill Nye episode about simple machines.  Next, we tackled the Eureka! episodes from season 2, which dealt with the inclined plane, the leverthe screw and the wheel and the pulley.  As always, those were slightly complicated for the first grade set, but they enjoyed them nonetheless.  Less complicated was the Brainpop Jr. video on simple machines.  Most Brainpop videos are subscription only, but this one is free.

Next, as always, we did something in our journals.  We talked about how machines reduce work, which was very clearly covered in the Eureka! videos.  We looked for examples of simple machines in magazines and newspapers then labeled them.

Then, the real fun began.  We watched several videos of Rube Goldberg machines.  If you go to Youtube and search for “Rube Goldberg” or “Pitagora Suichi” then you’ll find a million of them.  Mushroom and BalletBoy’s favorite is probably this Easter themed one.  We also watched this amazing video from OK Go.  That video also has a TED talk about it, which is an inspiring little thing and fun to watch.  We finished by making our own Rube Goldberg contraption.  I told the kids it had to involve at least three different types of simple machines.  They chose to create something using the wheel, the inclined plane and a pulley.  They knew we were filming this and had already decided it would be their ticket to Youtube fame.  Thus, if you watch the video of their contraption, you’ll hear them screaming, “We’re famous!” when it finally worked.

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