Fun Science Projects & Experiments
More Science Projects and Experiments
Math Worksheets
Science projects, videos and experiments for various grades and topics.
Science Projects or Science Experiments: Grades 3 & 4
Earth's Crust & Structure
Structure of the Earth
What drives the tectonic plates as they glide over the Earth's surface? Scientists have probed our planet to its core. In this realm of unimaginably high temperatures and pressures, matter takes on new forms, and solid rock can behave like a fluid. As vast masses of rock flow slowly within the Earth, so the surface moves and changes. Gigantic plumes of hot material can well up from the depths, triggering huge volcanic eruptions and causing the crust to bulge and break. The result may be the splitting of a continent and the creation of a new ocean basin
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