School Science Projects

My kids picked some science projects that I have no idea how to set up the display. Erosion is possibly the most difficult to do. To do it right, you need a demonstration, but to carry a small sand table and tank in and out of school is impossible. Plus, the wifee would have to do it since I can't be there in the morning. It's due Monday morning and we are really just getting started this morning. Hope we succeed... keep your fingers crossed!!

Also, the son is going to demonstrate the differences between plants that are watered with regular water versus those watered with distilled water. Maybe over about a year you might see a difference due to the minerals in the water, but without controls set-up on the soil (like using gravel instead of nutrient rich soil), there should be no difference. But that's what he chose and we will make it work. It's been 3 weeks and I'm sure we will never be able to tell the difference.

It's getting late... but we've got a plan.
The daughter is doing wind and water erosion. We've got her rock tumbler from Christmas for the water erosion concept and sandpaper and a block of wood for the wind erosion. Using these basis demonstrations, we can show the pictures of Arches National Park in Utah where wind erosion over thousands of years created some faboulous natural rock arches. Smooth stones from a local stream bed will demonstrate the abrasiveness of water erosion under the correct conditions. I think we are going to be okay.