Printed on 11" x 17" size, these cycles include a control, a mute chart and all the movable pieces. With these charts you will be able to show the children how the natural cycles interact with each other and how man's presence on the earth has affected them.
They make an excellent supplement to the Impressionistic Charts Level 6-9, as well as the 9-12 Charts (ELC-5083 and ELC-5084).
This set includes the following charts:
- The Carbon/Oxygen Cycle
- The Nitrogen Cycle
- The Rock Cycle (chart only)
- Layers of the Ocean (chart only)
- The Water Cycle
- The Normal Greenhouse Gas Function, and
- Man-made Greenhouse Gases and their role