Xtreme STEM
DashX

Each group will be assigned a number to start on.

Make sure you report to Mr Dash after each section.

1) Milk Mantle

dirt
  1. Place a pan on the stove (or hot plate)
  2. Pour milk into a pan until it is 5-7mm deep
  3. Carefully and evenly shake cocoa powder onto the milk (about 2mm thick)
  4. Turn the heat to high
  5. Predict what will happen
  6. Wait 2-5 minutes (watch it the whole time)

What is Happening?

Explain why you think this happens with your team.
How is this model like the earth? How is it different?

 

Your Theory

When you have a theory about the reason the "plates" break-up and move, tell Mr. Dash.
(It's ok to be wrong)

 

Stop You need talk with Mr. Dash before continuing.

We have explained our theory to Mr. Dash

2) Watery Core

  1. Fill the large plastic container with cold tap water (leave about 5-10cm room at the top)
  2. Container #1
    1. Place 10 drops of red food coloring in the first glass cylinder
    2. Fill the first cylinder with hot water (right to the top)
  3. Container #2
    1. Place 5 drops of blue food foloring in the second glass cylinder
    2. Fill the second cylinder with ice water (right to the top)
  4. Predict what will happen
  5. Hold the strings of both containers and use them to lower both cylinders into the big container at the same time.
  6. Lower them to the bottom, but don't let them tip over
  7. Hold them in place for 2-3 minutes.
  8. AFTER waiting - Reach in with your hand and tip over the blue container

 

pour

 

 

 

What is Happening?

Explain why you think this happens with your team.
How is this model like the earth? How is it different?

 

Your Theory

When you have a theory call Mr. Dash and explain it to him.
(It's ok to be wrong)

 

Stop You need talk with Mr. Dash before continuing.

We have explained our theory to Mr. Dash

 

3) Puzzling Plates

Many people have noticed the continents look like they might fit together like a puzzle.

Can you fit together all the tectonics plate on our planet?

If they do fit together what might this tell you?

 

map

 

map

 

  1. Are divergent plates (plates which are moving away from each other) usually found in the center of oceans or at the edge of continents?
  2. Name three places where plates are converging (plates coming together).
  3. Australia
    • Compare Australia’s position (mid-plate) with that of some of our closest neighbors e.g. New Zealand, Indonesia, Papua New Guinea.
    • When planning for geohazard events how might preparations in Australia differ from preparations in Indonesia or New Zealand?
  4. Consider the position of major elevation features in relation to plate boundaries (e.g. fold mountain ranges, deep ocean tranches, mid-ocean ridges). Explain how these features are formed and their association with different types of plate margin.
  5. Find the San Andreas Fault in California. Draw a sketch to show the two plates involved in this transform plate margin and their directions of movement.
  6. Countries
    • Name five countries that are in mid-plate locations.
    • Name five countries that are on the edge of tectonic plates.
  7. Create a table of the top five fastest moving tectonic plates. Include columns for the plate name, speed (mm/year) and direction. If there is more than one speed shown across the plate then choose an average number for that plate.

 

Stop You need show your answers to Mr. Dash before continuing.

We have showed our answers to Mr. Dash

 

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