The units on Plants , Water , The Human Body and Air are currently available, and the units on Trash and Sound will be available in the Spring of 1998. In all, more than 20 units are planned. Individual copies of the student materials and Teacher Guides are available as well. Trash Most of the units take about 5 weeks to complete. The Plant unit takes about 9 weeks, mostly due to the fact that plants take a while to grow.
Many teachers start another unit while finishing up Plants .
Click on the icon to learn more about each unit.