Bounce Lab
Purpose:
The purpose of this lab is to find the elasticity of two different types of balls. we will be using a Ping Pong Ball and a small Bouncy ball and dropping them from the height of 50cm-100cm. This way we can measure the rebound of the ball and find the elasticity.
Analysis: One variable that could affect the elasticity of the ball would be the surface on which we test the bounce of the balls. This would be reasonable variable to test because you can find feasible surfaces to test on. Another variable that might effect this testing could be the altitude of which you test the balls. This could affect them by the altitude creating more or less pressure within the ball. Of course this variable could only be tested with the ping pong ball and not the bouncy ball. The third variable would be the temperature of the air inside the ball. This would also create more or less pressure via the temperature...
Moldy Bread ExperimentProblem-
In seven days, how long will it take for three different types of bread, (White, Wheat, and Rye), to mold, and does the speed of the mold become increased if the bread is organic or non-organic? Hypothesis- If three different types Non-Organic and Organic breads are left out; Wheat, White, and Rye, then the Organic White Bread will mold the fastest because there is less preservatives in organic bread, and less density in White bread. Conclusion- (Emily): The purpose of this experiment was to see if White, Wheat, or Rye bread molded the fastest, and if it would affect the molding process if the bread was Non-Organic, or Organic. For this experiment there was two slices of each type of bread, (Non-Organic and Organic), placed inside separate plastic, Ziploc bags. A square inch of damp paper towel was placed in each of the twelve plastic bags with the slices of bread to fasten the productivity of the mold. For measuring the growth of mold, each Ziploc bag had a grid placed on it. The fourth day of the experiment, each slice of bread was blow dried with a hair dryer for five seconds to create even faster results. For seven days, once a day, the mold was measured to observe its growth... To See Full Experiment Click Here |
Procedure...
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Animas High School 3206 North Main Street Durango, CO 81301
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[email protected]