Snowmobile lab procedures: http://aspire.cosmic-ray.org/javalabs/java12/fnm/act1/lab.htm
Astrophysics Science Project: http://aspire.cosmic-ray.org/javalabs/java12/fnm/index.htm
NSTA SciLinks for forces: http://www.scilinks.org/Harcourt_Hsp/HspStudentRetrieve.aspx?Code=HSP205
Force & Motion: http://www.myteacherpages.com/webpages/mri/review.cfm?subpage=1150506
Force & Motion activities & labs: http://www.myteacherpages.com/webpages/mri/review.cfm?subpage=1150506
Leaning Science motion & forces: http://www.learningscience.org/psc2bmotionforces.htm
Contour lines: http://raider.mountunion.edu/~mcnaugma/Topographic%20Maps/contour.htm
Contour line quiz: http://www.compassdude.com/contour-quiz.shtml
AstroVenture: http://astroventure.arc.nasa.gov/
Fossils & geologic time: http://www.ucmp.berkeley.edu/education/explotime.html
Topographic maps: http://www.sir-ray.com/Topographic%20Map%20Lab.htm
Causes of extinction: http://www.eoearth.org/article/Causes_of_extinction?topic=58074
Extinct animals in the last 100 years: http://www.buzzle.com/articles/extinct-animals-in-the-last-100-years.html
Extinct animal photos: http://www.extinctanimals.net/photos
Extinct animals & plants in the last 100 years: http://www.brighthub.com/environment/science-environmental/articles/30548.aspx
Causes of extinction: http://www.uwec.edu/jolhm/EH4/Extinction/CausesLink.html
NASA Module 1: http://er.jsc.nasa.gov/sEh/Mission_Geography/k-4/Module_1/I-1-2.pdf
Difference between satellite imagery & aerial photography: http://www.ehow.com/info_8621214_difference-satellite-imagery-aerial-photography.html
Satellites: http://express.howstuffworks.com/wq-satellite.htm
Sun webquest: http://jn016.k12.sd.us/sun_webquest_sites.htm
Japan tsunami photos: http://www.nytimes.com/interactive/2011/03/13/world/asia/satellite-photos-japan-before-and-after-tsunami.html
USGS aerial photos & images: http://egsc.usgs.gov/isb/pubs/booklets/aerial/aerial.html
Virtual earthquake: http://www.sciencecourseware.com/eec/Earthquake/
Weight on other worlds: http://www.exploratorium.edu/ronh/weight/index.html