Thor (the Viking god of thunder) keeps on dropping his hammer and it keeps on falling to Earth.  Year 5 were set the task of slowing it down using what they knew about forces- more specifically air resitance!

Would a bigger parachute (with a larger surface area) create more air resistance and slow it down than a smaller one?  Cue making parachutes and hammers that were tested!

Here is what Johan found out:

"Our results show that the size of the parachute does change the speed the hammer falls.  The results were; the bigger one took 0.6 seconds and the smaller one 0.58 seconds.  So the smaller one was fastest and the bigger one created more air resistance."

Another problem solved by team Year 5!