Exploring Plate Tectonics and its Role in Land Uplift
This unit will introduce students to tectonic plates. Students will develop questions after viewing satellite images showing uplift along the coast of New Zealand from 2010 to 2016. Throughout the unit, students will analyze pieces of evidence to answer their questions and eventually come to understand tectonic plates’ role in causing uplift in land through mountain formation and earthquakes.
The Earth’s crust or lithosphere is made up of giant plates that shift and move on top of the slow moving mantle. The plates are always slowly shifting and over millions and millions of years this leads to the formation of many of the geological features of Earth like volcanoes and mountain ranges.
Where the plates meet, different boundaries are formed: divergent, convergent, and transform. Divergent boundaries are where the plates are moving apart from each other. These are most often found at ocean floors. Convergent boundaries occur where plates are pushing towards each other and transform boundaries occur where plates slide next to each other. The pushing of these plates against each other leads to an increase in stored energy and pressure. When this energy is released, the plates move quickly in a short amount of time. This is what happens when we experience an earthquake.
Students will model the motion of the plates at the different boundary types and learn to see how the moving of the plates shape our planet.
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Learning Objectives
Tectonic plates
Fault types
Land uplift can occur due to either mountain formation or an earthquake at a reverse fault. Both occur due to the motion of tectonic plates but both happen at drastically different time scales.
Use interactives to determine if plate boundaries are transverse, convergent or divergent
Use an online model to investigate if subduction can create land uplift in the form of mountains
Use an at-home model to learn about the types of plate boundaries
Use an interactive to learn about the types of geologic events of the past
Describe what happened in New Zealand to create land uplift
Standards Alignments + Connections
MS-ESS2-2: Construct an explanation based on evidence for how geoscience processes have changed Earth’s surface at varying time and spatial scales.
6.10D: Describe how plate tectonics causes major geological events such as ocean basin formation, earthquakes, volcanic eruptions, and mountain building.
Unit Plan
Students are introduced to these two satellite photos of New Zealand in 2010 and 2016 showing coastal uplift. (downloadable above).
Students can capture their thoughts and questions in the document: What’s Going On?
Questions may include:
Did something happen between 2010 and 2016?
Is this the start of a mountain range?
Did humans cause this to happen through landfilling?
Did the oceans retreat from the coast?
Activities to Gather Evidence
Investigating Mountain Formation Processes Students will be introduced to tectonic plates and their role in mountain formations.
Finally, students will use a model to investigate if subduction zones can lead to mountain formations and if the time scale for their formation is feasible for the viewed phenomena.
Then students will investigate earthquakes and how they happen. This also includes types of fault lines and which ones most commonly create land uplift.
Students will engage in a STEM challenge to design a truck powered by a chemical reaction that will have to stop within a specific drop-off zone. Teams will be challenged with various payloads to earn bonus points if they can stop in the drop-off zone.