ABSOLUTE ZERO: Erin reads the temperature in the room from a wall thermometer: 23° Celsius. Mr. Wizard says she is going to use that temperature to find the lowest possible temperature in the universe. They use apparatus with a metal ball at one end and a pressure gauge at the other to find the lowest temperature. See how they do this. CAMPFIRE CHEMISTRY: With a torch Mr. Wizard is heating a flask with a side tube. The wood in the flask is turning black, the flask is filling with smoke, but there is no flame. What doe the wood need to turn into and what does it need to be combined with before it can burn?? MILK COLORS: In a tray Mr. Wizard and Dan watch swirling colors on a layer of milk. In another tray Dan pours milk. They drops of food coloring on the four sides of the tray. When liquid soap is run down the sides of the tray near the food coloring. The breaking of the surface tension by the soap swirls the color together to make a moving version of modern art. TOWER OF SALT: Mr. Wizard wants Shan to pour liquid in a flask into a small beaker. She doesn’t think all the liquid will fit into the beaker. He explains that it may be because of a strange form of saturation. He shows her a saturated salt solution with the un-dissolved salt at the bottom of the container may be the reason. He explains crystallization. COPPERPLATING - Mr. Wizard shows Clara a key and a clamp which he has plated with copper. Clara has never plated anything but today she is going to copper plate an eye bolt. ELECTROCUTED PICKLE - The current is turned off the forks that are inserted into a pickle. Damon turns on the current and the pickle begins to smoke and flashes of light can be seen inside of it. The light is coming from the agitated sodium ions in the brine. A scientist in the 1800’s ran electricity through water salt water and vinegar, so the reaction is known by his name: the Kolb Reaction.moreless
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