Houghton Mifflin http://www.eduplace.com/kids/tnc/
National Geographic for Kids http://www.nationalgeographic.com/kids/
Math games http://www.aplusmath.com/Games/index.html
Math Trailblazers http://www.kendallhunt.com/index.cfm?PID=152&PGI=0
Watch a movie and take a quiz. http://www.brainpop.com/
Oceans Alive http://www.abc.net.au/oceans/alive.htm
Coral Reef Adventure. Click on Learning About Reefs and then the Virtual Reef. http://www.coralfilm.com/
Enchanted Learning http://www.enchantedlearning.com/subjects/ocean/
Biomes of the World http://www.mbgnet.net/