Student+Activity+2

Activity Two: Field Study

Location: Rocky Run, a Brandywine River Tributary Question: What is the relationship between steam velocity and changes in stream elevation/slope?

Hypothesis: As the elevation/slope of the stream increases the velocity of the stream increases.

Procedure: A member of the group used 5 meters of string and a fishing bobber to measure the amount of time it took the bobber to travel 5 meter in the center of the stream. Graph the trial time data. Remember to label and title the graph. Include units. Use a different color for each trial.

Calculate the following: Average Time for each location: Remember units.

Location 1:

Location 2:

Location 3:

Analyze the data.

Compare the slope/gradient to the average velocity. What observation can you make?

Was the hypothesis correct? Why or why not?