NSDL Science Refreshers 4 results returned Resources for Science > Earth Science > Earth Process and Materials > Earth HistoryEvidence supporting continental drift - on the move continental drift and plate tectonicshttp://kids.earth.nasa.gov/archive/pangaea/evidence.htmlA short article from NASA discussing evidence for continental drift, and support for plate tectonic theory. Resource Type: Reference Material - Article, Reference Material - Nonfiction Reference, Audio/Visual - IllustrationGrade Level: 5, 6 Welcome to virtual age - datinghttp://www.sciencecourseware.org/VirtualDating/A learning module on isochron and radiocarbon dating of rocks. Resource Type: Assessment Material, Instructional Material - Tutorial, Audio/Visual - IllustrationGrade Level: 5, 6 The geologic time spiral - A path to the pasthttp://pubs.usgs.gov/gip/geotimespiral/A graphic representation of the past 4.5 billion years in PDF and is downloadable. See USGS Fact Sheet 2007-3015 at http://pubs.usgs.gov/fs/2007/3015/ for ages of geologic time periods. Ages in the spiral have been rounded from the age estimates in the Fact Sheet. B.Y., billion years; M.Y., million years. Resource Type: Audio/Visual - IllustrationGrade Level: 5, 6 Earth system evolution - activity 2 paleoclimateshttp://www.agiweb.org/earthcomm/earthsystem/climatechange/activity2.html?State=MIThis page is from a comprehensive module intended for high school students. It contains information and links regarding using fossil evidence, such as pollen, ice cores and tree rings to infer climatic change over time. Additional related topics and activities are found in the right hand navigation bar such as Activity 5 -How Do Carbon Dioxide Concentrations in the Atmosphere Affect Global Climate? Resource Type: Reference Material - Nonfiction ReferenceGrade Level: 2, 3, 4, 5, 6 |
