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More Lessons for science projects and experiments
Math Worksheets
A collection of science projects, videos and experiments for various grades and topics.
Carbon Cycle and Global Warming
The carbon cycle, the flow of carbon on our planet, is amazingly complex. Here’s a quick look at how carbon flows between different areas on our earth and how humans have likely contributed to global warming.
The Carbon Cycle
This video describes the terrestrial carbon cycle and why it is important, including an explanation of the Greenhouse Effect.
Carbon Cycle Song
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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