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There are 9 videos in this category and 39 videos in 3 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 3 - 10
1228 Views:
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This video gives step by step directions on how to make crystals using Borax, pipe cleaners, plastic cup, pencil, spool, and boiling water. Although she makes a "holiday ornament" with the pipe cleaners, the experiment could be used at any time of t...he year. The instructor is making a super saturated solution where the solids are dissolving into the liquid. Eventually you dissolve so much solid into the liquid that the liquid cannot hold the solid any more. Borax is actually a crystal. So as the liquid cools, the crystals will form on the pipe cleaner. You could adapt this video/craft for a lesson about shapes - making various shapes out of the pipe cleaners. Run time 05:49.
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June 4, 2010 at 12:08 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
1210 Views:
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Dilutions
From YouTube, produced by Studio4Learning
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How do you lower the concentration of a solution? You dilute it! Learn how to calculate the concentration of a solution from volume and molarity! This video gives the equation to find the new concentration and then gives an example.
November 27, 2009 at 12:01 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
1188 Views:
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Learn about the Science of Fudge with this video from Dr. Kiki Sanford as she goes over the chemistry of fudge to explain how super saturation and crystallization are involved in making delicious fudge. Other key concepts include: solution, dissolve,... melt, sugar molecules, Run time 07:20
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May 5, 2010 at 04:56 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
2316 Views:
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This song parody will reinforce some concepts regarding "solutions" in science. It distinguishes "solute" from "solvent" and emphasizes some of the characteristics of a solution and aqueous solutions. Mr. Edmonds uses visuals as he sings. This is a g...reat resource to work in conjunction with a lesson/unit on solutions. Middle school and high school students will enjoy this catchy tune. (3:54)
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September 21, 2011 at 10:22 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
1408 Views:
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This brief video uses computer animation and narration to explain the dissociation of salt (sodium chloride) in water - creating a sodium chloride solution. Run time 0:52.
June 10, 2010 at 07:54 PM
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Not Right For WatchKnowLearn
Ages: 16 - 18
264 Views:
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A chemical demonstration showing that ions must be present in solution for electrical conductivity. A good demonstration that explains the difference in dissolving and dissociation of ions (04:12).
September 5, 2012 at 07:24 PM
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Not Right For WatchKnowLearn
Ages: 15 - 18
260 Views:
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After writing and balancing equations, most chemistry teachers require students to write net ionic equations (especially in AP chem). It can seem confusing at first, but the teacher in this video makes it simple (09:37).
October 15, 2012 at 09:43 PM
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Not Right For WatchKnowLearn
Ages: 7 - 13
1066 Views:
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This is a science project done by the girl for Girl Scouts. It uses Epsom salt, pipe cleaner, pen, tap water and a cup. She explains what she did...
May 21, 2010 at 12:54 AM
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Not Right For WatchKnowLearn
Ages: 10 - 18
950 Views:
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A three minute video that shows how carbon fiber is made and some uses. Brief, but usable for older students.
August 13, 2010 at 08:39 PM
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