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• Mr. Wizard's World: Wheels

Mr. Wizard demonstrates that wheels don't always need to be round to function as wheels.

• Square One Television: Which Candy Bar is Best?

In this clip, two young men compare the sizes of three hypothetical candy bars to decide which to buy.

• CrashCourse: Hunting for Properties

This video simply discusses what properties of matter are and explains a few properties, such as length, width, height, and weight, commonly seen in science. The video is simple, but depth and complexity can then be added to your lesson based on grade level.

• Maths Mansion: Measuring Area

Bad Man challenges Ryland and Celia to measure the area of multiple rectangular objects, such as a playing card and a videotape. Their process of measuring the length and the breadth (or width) is accompanied by supporting visuals. Afterwards, Bad Man suggests an easier way to remember the formula: by using the first letters of each word.

• Mr. Wizard's World: The 4th Dimension?

Mr. Wizard explains the fourth dimension: time. He mentions that length, width, and height are the three dimensions we're familiar with and that time is another dimension.