US Geological Survey
U.s. Geological Survey: Save Animal Tracks as Plaster Casts
Engage students in the outdoors by searching for fresh animal tracks and making molds of them. Then investigate which animal might have been there.
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Tracking Dinosaurs
Two activities that will help students learn how paleontologists are able to determine, based on fossil evidence, whether a particular dinosaur was walking or running when it left footprints behind.
Environduck
Enviroduck: Carbon Footprint Calculate Your Co2 Generation
Go green when you use carbon footprint calculator to figure CO2 and how to lower it.
Environduck
Enviroduck: Carbon Footprint Calculator the Math Behind the Calculations
Learn the math on how our calculator figures your carbon footprint.
Environduck
Enviroduck: Carbon Footprint Calculator Help With Software
Online software help for the carbon footprint calculator.
Smithsonian Institution
Smithsonian American Art Museum: Sam Francis
As part of the Smithsonian Art Museum's database of artists, this site provides biographical information on Sam Francis in addition to an extensive listing of his works as displayed at the museum.
Norfolk Botanical Garden
Norfolk Botanical Garden: Teacher Resources: Animal: Foot Adaptations [Pdf]
See if you can match an animal with its footprint. This article explains why animals' feet have individual adaptations.