This post was edited by Kevin Murphy on Jan, 2019
Hi Everyone,
Sharon also asked me about where she might locate before and after eruption images of Mt. St. Helens. In case you might be interested, here are some sources:

Here are some Mt. St Helens images that you might use:
http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003116/index.html

This site has a movie you might find useful to get kids excited about Mt. St. Helens:
https://asterweb.jpl.nasa.gov/gallery-detail.asp?name=helens

Here is some interesting background information:
http://www.nasa.gov/vision/earth/lookingatearth/mshelenslidar.html

Thanks,---Carla