Alabama Learning Exchange
Alex: Freezing Things: States of Matter
The class will go back over the Power Point presentation on chemical and physical properties. The teacher will then conduct numerous liquid nitrogen demos. This lesson is used early in the Chemistry course. The students love it. This...
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Classzone: Weather Forecasters Use Advanced Technologies [Pdf]
An excerpt from an earth science textbook. The chapter shown here covers concepts about how weather data is collected, displayed and how meteorologists forecast fronts and storms.
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