Monday, May 16, 2016
Thursday, May 12, 2016
In this model, students used small horizontal "roots" made out of thin strips of sponge to capture "rainfall" - just like a cactus does.
They squeezed them out and measured how much water they were able to get, as a group, in two minutes of "rain."
70 ml for our cactus
The oak tree roots were larger pieces of sponge, were able to access the water directly from groundwater, and could be vertical to do so. After 2 minutes, the whole group collected the amount of "oak tree" root water.
4300 ml for the oak.
Quite a difference!
While not a perfect model, it illustrates how different plants adapt to their different environments.
We ended by drawing the root systems, taking notes, and recording our experimental data!
The basic framework is a couple of different platforms separated by logs, that they can access from different levels. The idea is that they will work together to create one large "treehouse"
|This will be a multi-week building project!|
Friday, May 6, 2016
Fidelity Investments and Impact4Good donated several solar car kits for our fourth grade to use as part of their renewable energy unit.
Ready to test in a mini-race - with flashlights.