Biomes

http://www.factmonster.com/ipka/A0769052.html - Information
http://www.enchantedlearning.com/biomes/ - Information
http://oncampus.richmond.edu/academics/education/projects/webunits/biomes/oceans.html - Information
http://www.mbgnet.net/ - "What's it Like Where You Live"
http://www.hesd.k12.ca.us/resource/biomes/Whatisabiome.htm - Information

Planets

http://www.planet-science.com/randomise/index.html?page=/planet10/ - Planet 10
http://seds.lpl.arizona.edu/billa/tnp/ _ Planet Facts
http://pds.jpl.nasa.gov/planets/welcome.htm - Planet Facts
http://www.windows.ucar.edu - Planet Facts
http://www.frontiernet.net/~kidpower/astronomy.html - Astronomy for Kids

Simple Machines

http://www.coe.uh.edu/archive/science/science_lessons/scienceles1/finalhome.htm - Examples and Information
http://www.edheads.org/activities/simple-machines/index.htm - Activities
http://www.mikids.com/Smachines.htm - Examples and Information

Water Cycle

http://earthguide.ucsd.edu/earthguide/diagrams/watercycle/ - Interactive Diagram
http://www.epa.gov/ogwdw/kids/flash/flash_watercycle.html - Interactive Video
http://www.kidzone.ws/water/index.html - Water Cycle Activities
http://www.epa.gov/safewater/kids/index.html - Water Cycle Activities

Weather

http://www.edheads.org/activities/weather/ - Predict the Weather
http://www.windows.ucar.edu/tour/link=/earth/Atmosphere/weather.html - Weather Terms

Video Clips

http://www.youtube.com/watch?v=5hJzVZhKw7g - Simple Machines - Bill Nye the Science Guy
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Biomes - Biomes Interactive Movie
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Lightning - Lightening Interactive Movie
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Huricanes - Hurricanes Interactive Movie
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Tornadoes - Tornadoes Interactive Movie
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Eclipse - Eclipses Interactive Movie
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Mars - Mars Interactive Movie
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Jupiter - Jupiter Interactive Movie
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Mercury - Mercury Interactive Movie
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Saturn - Saturn Interactive Movie