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A collection of science projects, videos and experiments for various grades and topics.
Science Projects or Science Experiments: Grades 3 & 4
Lightning
Weather & Meteorology : What Causes Lightning?
As clouds get bigger with the continuous rising of air, they interact with particles of ice and dirt to create a buildup of static electricity. Learn about the interaction of electrical charges in a cloud with charges on the ground with help from a meteorologist in this free video on understanding weather.
Weather & Meteorology : How Can I Tell How Far Away a Lightning Strike Hit?
In order to determine how far away a lightning strike hit, count the time that occurs between the lightning flash and the clap of thunder. Discover how a five second differential means a lightning strike is about one mile away with help from a meteorologist in this free video on understanding weather.
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