Name:_________________________ Section ___________ Glacier flow lab: creating a model to see glacial movement In this lab activity you will use “glacial goo” to model how glaciers actually move. Glaciers Review: How do glaciers form? What do glaciers need to grow? ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ What causes glaciers to move? ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ Glaciers can flow at different speeds. What factors can affect the speed of glacial ice? ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ What part of a glacier do you expect to flow the fastest? The slowest? Make a claim and explain. ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ Glacier Flow Lab Set­Up Supplies: ● 1 zip­loc bag of “glacial goo” ● Dry erase board with centimeter grid drawn on to it. ● Metric ruler ● Pencil ● Lab sheet ● Tape ● Stop watch ● Plastic bin ● Textbooks Set­up: Using the plastic bin create a ramp with the dry erase board. Use tape to secure the ramp so that it does not move. Observations Initial Experiment: Glaciers flow under their own weight and the force of gravity. Place your glacier goo at the top of the ramp and release it. Describe what you see. ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ 2 Glacier Flow Lab How is this similar to a real glacier? How is it different? ___________________________________________________________ ___________________________________________________________ ___________________________________________________________
Glacier Flow Trials: Now you will perform a series of experiments to see how glaciers respond to changing conditions. In each trial you will do 3 runs where you observe the flowing glacier for ​
2 minutes In each you need to measure: ● The elevation of the starting and ending points ● The distance between the start and end points ● The slope angle of your ramp In all trials the​
starting point should be the same​
! 3 Glacier Flow Lab For each trial record your measurements and observations in the tables below. ​
In each trial you will adjust the slope of the dry erase board. You will do three runs per trial and calculate the average value for the trial Trial 1: ​
slope = ​
gentle​
, ​
time = 2 minutes Run # Distance traveled (cm) Starting elevation (cm) Ending Elevation (cm) Elevation change (cm) 1 2 3 Average Observations in Trial 1 ___________________________________________________________
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___________________________________________________________ 4 Glacier Flow Lab Trial 2: ​
slope = ​
moderate​
, ​
time = 2 minutes Run # Distance traveled (cm) Starting elevation (cm) Ending Elevation (cm) Elevation change (cm) 1 2 3 Average Observations in Trial 2. Include any differences from Trial 1. ___________________________________________________________
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___________________________________________________________ 5 Glacier Flow Lab Trial 3: ​
slope = ​
steep​
, ​
time = 2 minutes Run # Distance traveled (cm) Starting elevation (cm) Ending Elevation (cm) Elevation change (cm) 1 2 3 Average Observations in Trial 3. Include any differences from Trial 1 & 2. ___________________________________________________________
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___________________________________________________________ Data Analysis: How did changing the slope of the board affect how the glacier flowed? ___________________________________________________________
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___________________________________________________________ 6 Glacier Flow Lab What have you learned about glaciers from your observations? ___________________________________________________________
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___________________________________________________________ Design your own glacier goo trial Design your own experiment using the glacier goo. Change the variables in the experiment and make a claim about how these variables could affect glacier movement. Record your procedure for your new experiment. Record your results. Then interpret your data and evaluate the claim you made. Finally compare and contrast your model glacier to real world glaciers. Variables changed: ___________________________________________________________
___________________________________________________________ Claim: ___________________________________________________________
___________________________________________________________ Procedure: ___________________________________________________________
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___________________________________________________________ 7 Glacier Flow Lab Results: Run # Distance traveled (cm) Starting elevation (cm) Ending Elevation (cm) Elevation change (cm) 1 2 3 Average Interpretations and conclusions: ___________________________________________________________
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___________________________________________________________ ___________________________________________________________ Comparisons to real world glaciers: ___________________________________________________________
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