Up and Down

November 19, 2008

The indicator for the wind speed can show how many rotation in a minute.
They tried out 3 different "wind speeds" and counted how many times the indicator turned around.

The weather balloon can go up and down


with this mechanism that uses a cam.


LEGO box does not hold water.

A cork works for a rain gage.  What LEGO piece would also float?

no    yes

Next week they will pull all their research together, draw a picture of their model, and write up their Show Me poster.
Links of Linda Hamilton hamilton@marshall.edu