Try mixing bicarb and vinegar in the rocket .. woooshhh&nbsp; <br><br>I do it in my year 9 IT class .. of course any excuse to return to my life before teaching.<br><br>The ABC Experimentals and Surfing scientist have a webpage about it.
<br><a href="http://www.abc.net.au/science/experimentals/experiments/episode16_3.htm">http://www.abc.net.au/science/experimentals/experiments/episode16_3.htm<br></a><br>or try this lame indoor popper rocket with a bottle and straw
<a href="http://www.abc.net.au/science/experimentals/experiments/episode9_2.htm"><br>http://www.abc.net.au/science/experimentals/experiments/episode9_2.htm</a><br><br>Regards Roland<br><br><div><span class="gmail_quote">On 15/08/07, 
<b class="gmail_sendername">Russell Edwards</b> &lt;<a href="mailto:edwards.russell.t@edumail.vic.gov.au">edwards.russell.t@edumail.vic.gov.au</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>On 14/08/2007, at 11:16 PM, McDonald, Debra A1 wrote:<br>&gt; our school does this but with water rockets.. and it is much easier..<br><br>_Water_? Booooo!!! No loud hissing noise, no billowing smoke, how<br>boring! Everyone knows it&#39;s the pyrotechnics and not the principles
<br>of propulsion or ballistics that make it fun ;-)<br><br>Russell<br><br>_______________________________________________<br><a href="http://www.edulists.com.au">http://www.edulists.com.au</a> - FAQ, resources, subscribe, unsubscribe
<br>IT Applications Mailing List kindly supported by<br><a href="http://www.vcaa.vic.edu.auvce/studies/infotech/itapplications3-4.html">http://www.vcaa.vic.edu.auvce/studies/infotech/itapplications3-4.html</a> - Victorian Curriculum and Assessment Authority and
<br><a href="http://www.vitta.org.au">http://www.vitta.org.au</a>&nbsp;&nbsp;- VITTA Victorian Information Technology Teachers Association Inc<br></blockquote></div><br><br clear="all"><br>-- <br>Roland Gesthuizen - ICT Coordinator - Westall Secondary College
<br><a href="http://www.westallsc.vic.edu.au">http://www.westallsc.vic.edu.au</a><br><br>&quot;Never doubt that a small group of thoughtful, committed citizens can change the world; indeed it is the only thing that ever has.&quot; --Margaret Mead