Earth's Crust

http://www.teachertube.com/search_result.php?query=earth%27s+layers&type=all&safe=high&search-type=all&head_curriculum=0&head_content_area=0&head_subject=0&head_category=0&head_skill=0
http://misslwholebrainteaching.blogspot.ca/2013/07/the-earths-crust-resources.html


http://www.youtube.com/watch?v=QZkF7qyRaRo


http://www.learner.org/interactives/rockcycle/index.html


http://www.learner.org/interactives/volcanoes/