Caesium or Cesium - Periodic Table of Videos
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The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. Here are five grams of caesium in water... but did you know caesium is also used to define the length of a second?
Additional Resources for you to Explore
For amazing photos and facts about caesium, check out The Elements by Theodore Gray.
Check out version 1 and version 2 of the Periodic Video's take on caesium or cesium.
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TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.
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- Lesson Plan created by Periodic Videos