# Mr.Wizard's World Season 4Episode 6

## Episode 6

Aired Unknown Jun 10, 1987 on Nickelodeon
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## Episode Summary

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EARTH'S CIRCUMFERENCE: Mr. Wizard does a demonstration with Giselle using a large, round wooden table top and they note the measurements of the shadows cast by lengths of straws on the perimeter of the circle. He promises that she will be able to compute the circumference of the circle in the same way that an ancient mathematician did the circumference of the earth. See how Mr. Wizard does this. BUCKET MAGNIFIER Watch Mr. Wizard and Phillip turn a paper paint bucket into a magnifier. ADD A SQUARE: Danielle counts the squared lines on each side of a large cardboard square and multiplies 8 by 8 to calculate that there are a total of 64 squares. Is there an extra square or not? BOTTLED BALLOON: Mr. Wizard show the effect of air pressure and blowing up a balloon with Damon as well as explains. HOW MUCH SKIN: Mr. Wizard and Tyler calculate the surface of Tyler's skin using newspaper in a mathematical way. LIGHTNING: Scientists using sophisticated equipment have found that lightening can be five times hotter than the surface of the sun. See how this is equipment has helped to understand about lightning. OWL PELLET PART 1: Mr. Wizard explains to Shan how owls eat prey and consolidate undigested parts into a pellet which is expelled. By examining the pellet Shan can determine what the owl ate. She is given tools and written material to help in her investigation. PICKLE RESEARCH: Mr. Wizard adds a special ingredient to large tanks full of pickles to prevent mold and yeast from forming due a production of gases. Mr. Wizard explains the process plus new ways. OWL PELLET PART 2: Shan has bones she has removed from the owl pellet laid out on a sheet of paper and makes an educated guess as to what the owl ate.moreless

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