Alka Rockets

Winning Team - Hannah and Kayla

 354 centimeters!

My physics students were tasked with making an alka rocket.

I told them,  "Remember mass matters."

Here is what they came up with:

I loaded their rockets with water (about half a film canister) before going outside. When it came time to launch I gave them the fuel tablet (one half of an alka seltzer tablet). They dropped it into the film canister and snapped on the top, sat their rocket on the launch pad and waited.

POP!!! Here are the launches - clipped and saved on drop box by Osvaldo.


Second Place:


Ann Marie and Kaelin 322 cm (picture not available)




The next day they were asked to sketch a p-t, v-t and a-t graph of the flight of the rocket.

All right except the v-t graph.

Here is the solo correct answer after I gave a hint about the acceleration being constant.

Check the bottom middle - shy superstar