Steam Rocks
by Redwin P.
7th Grade - Honorable Mention

Question: Will a change in the diameter of the hole pressure escapes through on a rocket steamboat, affect its speed?

Hypothesis: The boat will have a higher rate of speed as the hole gets smaller until it reaches a 1/16th hole. Holes smaller than 1/16th will result in lowere rates of speed.

Discovery: The hypothesis was correct because as the hole gets smaller than 1/16th, the rates of speed were slower.