Friday, September 23, 2011

River Formation Experiments

1st experiment: Slope.
Hypothesis: The steeper the slope, the better chance of a river formation.
Procedure: Grab a tub of diatomaceous earth and set it down flat. Fill a graduated cylinder with 100mL of water. Slowly pour the water into the tub then notice the marks. Lift one end of the tub and set something under it to form a slope. Fill the graduated cylinder with 100mL of water and slowly pour it into the tub. Notice the new marks.
Data: No Slope: Lake/Crater. Slope: Erosion, River Formation.
Conclusion: The steeper the slope, the better chance of a river formation. The hypothesis was correct.
2nd experiment: Earthquake
Hypothesis: Earthquakes cause river formations.
Procedure: Grab two magnets then put magnets under diatomaceous earth. Turn the stir on high on the magnetic stirring hotplate. Put tub on magnetic stirring hotplate. Notice vibration (earthquake). Keep magnetic stirring hotplate on for 20 seconds. Turn off the magnetic stirring hotplate. Notice the divits.
Data: Divits/Craters, No River.
Conclusion: Earthquakes do not form rivers. The hypothesis was wrong.

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