Archive for August 3rd, 2012

03 Aug 2012

Posted by under Dave's Thoughts

Water Rockets

The kids each made water rockets out of 2L pop bottles as craft projects at Caperwray this week. We spent the hour after lunch constructing, painting and decorating the rockets each of the last three days. After supper this evening, it was time to launch the creations to see whose rocket could fly the furthest.
The launchers were a clever friction-fit arrangement that twisted into the base of the rocket. The rockets were pressurized using a heavy-duty bicycle pump. Surprisingly, the rockets would pressurize to over 140 psi before overcoming the friction of the launch tube.
Once they let loose they would really fly – Alyssa’s rocket was in the first launch and landed a good 400 m down range! Mark’s went almost as far, but Steven’s bottle had a flaw and blew apart on the launch pad.
Alyssa made the finals and her second shot went almost as far – she won $3.00 to spend at the Pump House (the little tuck shop) on candy. She was pretty pleased.
All the piccies are on the camera, once I get a chance to up load them to the iPad, I’ll add them to this post.

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