Tuesday, October 4, 2011
The first thing we did today in class was look in are books at what makes a solid. We looked at crystalline solid and amorphous solid. Talked about one example of amorphous solid is glass. Amorphous solids absord energy that it comes in contact with. We also talked about liquids. Ice in its solid form is one of the few solids that can float in it's solid form. Looked at the defintion of Viscosity. Had marble races in four different graduated cylinders with four different substances. We can up with that water has less viscostiy then bubble solution, Germ-X and Corn syrup. Bubble solution has less viscocity then Germ-X and Corn sryup and Corn syrup had less viscostiy then Germ-X. We are working in the lab with water and corn starch. We are also watching a video to see how to mix these two into a solid form. For the lab we need thirty millerliters of water and two scoops of Broax. Avoid using cold water in the breakers, it will cause then to break. Pour sixty milliliters of water into a graduated cylinder. Then get a cup of glue, do not pour the glue into the graduated. As your measuring the solution in the graduated cylinder you need to be warming up the broax in a burner. Mix the sixt milliliters of water with the thirty millilters of glue, with food dye and mix. At these point, you should be able to pick up the broax and mix it with the watery glue and you should get a amorphous solid.
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