Here is a post from Ms. Cannon, describing the study of whales our class is doing with her and including many excellent websites you might enjoy:

Through read-aloud, discussion, and videos we are learning about the largest animals that have ever lived on this planet. We have been discussing threats to whales and the importance of taking caring of the Earth and its many habitats. Third and fourth graders are recording facts about these amazing mammals in their whale research books. In art, both classes have made ocean collages using black and white nature photos to depict whales swimming in watercolor oceans.

Here are links to the videos we have watched to learn about different whales:

BBC- The Blue Whale

http://www.youtube.com/watch?v=K40D83obI8U

National Geographic- The Blue Whale

http://channel.nationalgeographic.com/channel/content/kingdom-of-the-blue-whale-3302/blue-whale-facts/#/compare/length

Humpback whales bubble-net feeding

http://www.youtube.com/watch?v=ELca_ZWVJtM&NR=1

http://www.youtube.com/watch?v=vJvfjiCTvq4

Endless Ocean- Right Whale

http://www.youtube.com/watch?v=HVX84qRrCSA

Orcas Whale Watching

http://www.youtube.com/watch?v=G8kcMXjPiIQ

Fin Whale

http://www.arkive.org/fin-whale/balaenoptera-physalus/facts-and-status.html

http://www.enn.com/top_stories/article/26222

Sperm Whale Versus Giant Squid

http://www.youtube.com/watch?v=_z2Lfxpi710

American Cetacean Society Fact Sheets

http://www.acsonline.org/factpack/bluewhl.htm