Earth's+Interior+Assignmenta

Part 2 - Watch this video - The Earth's Layers
media type="file" key="Four Layers of earth 1.14.asx"

Part 3 - Follow the links to find the answers to these questions:
How do we know all about the layers of the Earth if we've never been down there?

Why is the Earth's spinning core so important to us?

Part 4 - If you finish early, check out the following websites and explore:
[|Earthquake Quiz] http://www.pbs.org/wgbh/nova/magnetic/ http://image.gsfc.nasa.gov/poetry/ask/amag.html [|Latest Earthquakes] http://earthquake.usgs.gov/learning/kids/ http://earthquake.usgs.gov/learning/kids/eqscience.php http://www.fema.gov/kids/quake.htm