Science Experiment

Nearly two months ago, we buried seven plastic items in our garden.  The goal was to observe and record how much the items degraded over the term.  We have dug up and re-buried the seven items twice.  We have been shocked to discover, that there is ZERO sign of degradation on ANY of the items.  In fact, we think that if we washed the dirt off, we would be able to reuse everything.

Surely some of the items will start to degrade before the end of the term?

Here is Blake showing one of the items, a plastic bottle, to the rest of the class.  Everyone else is recording information in their diary: