We have started learning about pulleys and gears in science. Below is one of the best video clips that I have found about how they work. We watched it in class, and here it is if you'd like to watch it at home.
http://www.youtube.com/watch?v=9T7tGosXM58&feature=related&safety_mode=true&persist_safety_mode=1&safe=active
Also, we haven't investigated too much with gears yet, but here is the video we watched in class today about them:
http://www.youtube.com/watch?v=D_i3PJIYtuY&feature=related&safety_mode=true&persist_safety_mode=1&safe=active
Remember tomorrow is Valentine's Day so dress up in all the "love" colours!
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