Earth's Structure / Plate Tectonic/ Plate Boundaries
Earth Science NGSS:
ESS1.C: The History of Planet Earth The geologic time scale interpreted from rock strata provides a way to organize Earth’s history. Analyses of rock strata and the fossil record provide only relative dates, not an absolute scale. (MS-ESS1-4) Tectonic processes continually generate new ocean sea floor at ridges and destroy old sea floor at trenches. (HS.ESS1.C GBE) (secondary to MS-ESS2-3)
NYS Earth Science Standards:
2.1j Properties of Earth’s internal structure (crust, mantle, inner core, and outer core) can be inferred from the analysis of the behavior of seismic waves (including velocity and refraction).
2.1l The lithosphere consists of separate plates that ride on the more fluid asthenosphere and move slowly in relationship to one another, creating convergent, divergent, and transform plate boundaries. These motions indicate Earth is a dynamic geologic system. • These plate boundaries are the sites of most earthquakes, volcanoes, and young mountain ranges. • Compared to continental crust, ocean crust is thinner and denser. New ocean crust continues to form at mid-ocean ridges8
Grade level: 8th
By Simar Singh
PartI: Earth’s Structure. Use the following links to learn about the different layers of the Earth and to find the answers to the questions that follows:
Follow the text link below to go to the interactive lesson: Click to start exploring the tour.
Then click on each highlighted layer (name) and learn details on each layer.
Part 2 Plate Tectonics:
On the top of the interactive slide select plate tectonics and the plate and boundaries to learn about them and answer the questions.
Click on the link below for the reference Table of Physical Setting- Earth Science on Plate Tectonics/Plate Boundaries for more information while answering questions 4-8 below.
Now refer to Part 1: Earth's Structure and answer questions 1-3:
1.The lithosphere is made up of the ________ and a tiny bit of the _________ ___________.
2. The plates of the lithosphere move (or float) on this hot, malleable __________ _________ zone in the upper mantle, directly underneath the lithosphere. This is known as the _______________________.
3. The layer of Earth that is the only liquid layer is the ___________ ___________.
Now Refer to Part 2: Plate Tectonics and answer questions
4. What did Earth look like 250 million years ago?
5. The continents of Earth were clustered together in formation that a scientist named ______________.
6. The scientist that named “Pangaea” was a German scientist by the name of ____________ _____________ . He theorized that “Pangaea" split apart and the different landmasses, or continents, drifted to their current locations on the globe. Wegener’s theories of plate movement became the basis for the development of the theory of ____________ ________________.
7. The place where the two plates meet is called a ____________________.
8. Boundaries have different names depending on how the two plates are moving in relationship to each other.
A. If two plates are pushing towards each other it is called a _______________________.
B. If two plates are moving apart from each other it is called a ______________________.