Please help, I don't have the time or supplies to do this experiment.
In this activity, you will create a model that demonstrates convection currents in Earth’s asthenosphere.
Estimated time to complete: 1 hour
If you're using an Edmentum lab kit, remove the food coloring from the bag labeled "Common Materials." In addition to the food coloring, gather all the other items appearing in the following list. If you aren’t using an Edmentum lab kit, please check with your teacher for help.
You’ll need these materials:
food coloring
large, transparent glass or plastic container (such as a pitcher)
small, transparent glass beaker or jar (such as a baby food jar)
hot and cold tap water
aluminum foil
rubber band
5 to 10 small pieces of paper, approximately 2 centimeters by 2 centimeters
pencil with a sharp point
Follow these steps to create your model, and then answer the questions:
Fill the large beaker about three-fourths full with cold tap water.
Fill the small beaker about three-fourths full with hot tap water and stir in 5 to 10 drops of food coloring. Then carefully add additional hot water to the small beaker until it is filled to the brim.
Cover the top of the small beaker with aluminum foil and secure the foil with a rubber band.
Carefully lower the small beaker into the large beaker of cold water.
Place the small pieces of paper on the surface of the cold water.
Without disturbing the water, immediately use the tip of the pencil to make two small holes, about 2 millimeters in diameter, in the aluminum foil covering the small jar.
Observe the contents of the beaker and the paper pieces on the surface of the water. Record your observations and analysis by answering the following questions.
Part A
Describe what happened to the colored water and the pieces of paper after the holes were punched in the material covering the beaker.
Part B
Which part of your model represented Earth’s tectonic plates? Which part represented the asthenosphere in the mantle?
Part C
Explain what happened to the model’s tectonic plates. Did they move together or apart? Which type of plate boundary does the model represent? Describe the mechanisms and processes involved in their motion.
Part D
How well do you think this lab modeled the movement of Earth’s tectonic plates and its convection currents? Explain your reasoning. What geologic factors were you not able to model in this lab?