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Crash Course: Chemistry: Polymers
Hank explains polymers, describes some of their properties, and explains how they are formed. He also explains what you need to make a polymer: a molecule that can easily bond to another identical molecule at two points. Hank focuses on the polymer, Polyethylene, because it is the most common plastic in the world, and discusses its nomenclature. -
The Magic School Bus: How Water Changes
The class goes to Water Land and learns about how water changes when it is exposed to different amounts of heat. When water is heated by the sun, it evaporates. When it is cooled, it condenses. -
Bill Nye, the Science Guy: Phases of Matter
Bill explains the three states of matter: solids, liquids, and gases. He explains that these states differ in only the amount of energy they contain. Bill also uses several examples to illustrate the difference between the three states. -
Science with Sophie: Why Does Water Expand When Frozen?
Sophie explains how potholes occur in the street: when water seeps below the ground and freezes. She conducts an experiment to show how water expands when it freezes. -
Frozen: Elsa Runs Away
Elsa unintentionally reveals her ice powers when Anna takes off one of her gloves. She runs away from the townspeople after a series of accidents so as not to cause more harm and lose more of the trust of her fellow townspeople.
