Keep on Moving Competition

Continued from previous post... today we tested 18 designs outside in the playground and woods...  Here are some of them

 This was the most creative - air pump used to create air pressure then ball exploded out with some water so if would flow along...worked quite well but water went into pump.  We tested it outside as it had water as part of it...

 This simple idea moved for a few seconds - a CD on a water bottle top.

 Once the balloon had a small hole made in it, it shot off but landed quickly due to the heavy basket - nice idea though.

Lots used capapult ideas but the stones landed quickly and didn't move for long.

The class found the challenge hard but fun.