Our fourth experiment consists of us not only putting them in a ceramic tray, but also measuring the temperature underneath the hydrogels also. We figured out that cold air sinks, whereas warm air rises.

 

By putting a thermometer under the hydrogels, we may get different results or lower temperatures compared to the thermometer above the hydrogels.  We conclude from this experiment that the JUMBO hydrogels and SMALL hydrogels aren't as effective as the REGULAR ones. 

 

 

The thermometers are under the trays, because we learned, or remembered, that the cool air would collect inside the bad insulator. We concluded from this test that under the trays is much cooler than the average air. We chose that if we were to continue with our idea, we would have to use FANS to circulate the cool air from there to the rest of the room.

 

Independent Variable:  size of hydrogels

Dependent Variable: temperature under and over hydrogels

 

We conclude that we may be decreasing our efficiency using ceramic plates. However, that's what we have to work with.