Science

Pop can DRAGSTERS!   Using pop cans, toothpicks, an elastic, a bead, a pencil, cardboard and a paper clip we built a roller that moved!   We learned how the elastic stored energy and then released to move the can.  We learned that we needed a thicker piece of cardboard on top so that our bead didn't fall through the top of the can affecting the friction and tension of the elastic.   We learned that Science sometimes works and sometimes fails!   :-)   We had fun today seeing how far they would travel depending on how many times we wound the elastic.