To celebrate Science week we tried out our new Rocket Launcher.
We were expecting big things when we read the instructions and it said we needed 150 metres of space. So Mr Ray trotted down to the Rugby Club to test it out when no one was around.
It looked the part - aerodynamic, menacing and well designed.
It had clear instructions - we needed to fill the rocket 50 - 70% full of water...
...and pump, pump, pump,...
...stand back...
...then pull the trigger!
It turned out the goal posts 100 metres away was a bit ambitious. The rocket only flew about 10 to 20 metres, much to our disappointment.
This poor result required a few of the teachers to put the SCIENCE HATS on and problem solve.
What went wrong?
It turned out the pump was faulty and leaked air so the bottle couldn't get enough pressure to launch into the air far enough.
So for today's launch we upgraded and used Mr Devonport's bike pump which worked better...
...but still not as we'd hopped.The the rocket flying between 20 and 30 metres horizontally.
What next??? Heavier nose cone? Less or more water??
All in the name of Science!
Super impressed with all your science stunts!
ReplyDeleteEmily & Alan - Science in a Van