Early Earth > Ideas for Teaching > Soild Earth Teaching Ideas

This is a partially developed activity description. It is included in the collection because it contains ideas useful for teaching even though it is incomplete.

Ideas for teaching about the early solid earth

These teaching ideas were submitted during the April 2007 workshop on Teaching About the Early Earth. They represent collaborative brainstorming rather than finished products, but they are a useful starting point when seeking ideas for your classroom.

Also see teaching ideas about early life and evolution of the early atmosphere.
For more resources related to teaching, see classroom activities and early earth references for teaching

What's up with continental crust? How did it form? When did it form? How fast or slow did it form?

Submitted by Megan Jones, Darrell Henry, Mark Leckie, Lindy Elkins-Tanton, Joe Reese, Bosiljka Glumac, Bob Bauer


1. Intermediate majors course, maybe honors course - Literature-based discussion

Based on John Valley Scientific American Paper [Valley, 2005] . All students read article. One student presents. One week before presentation they must hand out 10 questions that students must answer and come to class with them answered so that they can be prepared for discussion.


All students: read primary literature, class discussion, assessment Individual student: give presentation, develop key questions from article, assessment.


Here is an example of a literature-based assignment using this topic, submitted by Dr. Lindy Elkins-Stanton, Massachusetts Institute of Technology. Scientific Paper Reading: Continental Growth (Microsoft Word 42kB Jul17 07) The file includes the reading list used in an introductory course for earth science majors.

2. Introductory Level - Jigsaw


Different hypotheses for crustal growth- rapid vs. slow growth rates—can discuss before (intro, major) or after jigsaw group (non-major, intro)


Three graphs or papers


First, expert groups for each graph or paper

Second, mixed group and explain their data to each other and form questions about their data discussion

Third, groups present their findings

Fourth, now instructor can compare their conclusions with recent hypotheses that scientists are working on.

Get paper references:

Follow-up (major courses)—go back to specialty group and find out about methods.

Have students go find out about methods used in papers above.

Demonstrate relevance: look at curves, crustal growth, of present day and make predictions about future development of shallow water platforms necessary for evolution of atmosphere and life.

How do planets lose heat?

Submitted by: John Zawiskie, James Kasting, Mark Skidmore, Joel Thompson, Alberto Patio, Joe Hill, Dianna Czeck

Comparative planetology activity between Earth, Venus, and Mars

Use global surface topography maps to determine tectonic and volcanic style differences.

How can we infer changes in heat flow over time for the Earth?

Impact Craters

Submitted by: Alisa Hylton, Michelle Markley, Julie Baldwin, Susan Conrad, Huiming Bao

Key questions:

Goals and objectives

Clarification of gaps in knowledge such as atmosphere, ocean what surface was like.
Looking at the surface of moon can give analogy of early Earth surface.


Begin with pictures of volcanic craters and compare with impact craters.
Create model craters in flour by dropping marbles. Take measurements of height of drop, size and depth of crater, and ejecta.
View clip from "Deep Impact"


Group #1 ages of rocks on moon and Earth
Group#2 composition of Earth and moon
Group#3 morphology of craters on moon and Earth
Group#4 morphology of craters on Earth
Reassemble to answer question: How did impacts affect early Earth?

How did the Earth form through accretion, and how is this process related to the age of the Earth?

Submitted by: Becky Teed, Bruce Oldfield, Wally Borowski , Stan Awramik, Susan Childers, Dave Mogk

I. Problem: Age dating is a fundamental method of finding the age of earth materials.

Background and Context:

Exercise - Meteorite age data set

Group Thinking activity


II Problem: Given the heat production curve of the Earth, what are the components that contribute? A) kinetic energy from impact to heat, b) Radionuclides c) potential energy liberated due to sinking of dense (Fe) material to the core

Background and Context:


How did the Earth form?

Submitted by: Linda Sohl, Mike Phillips, Aaron Cavosie, Staci Loewy, Shoichi Kiyokawa, Paul Mueller, Mike Williams


Historical Geology (undergrad), especially for large lecture classes


Discuss the history of hypotheses regarding the formation of the Earth; show how the discarding of old hypotheses does not mean that nothing is known, merely that new hypotheses need to be created from existing data (i.e., show how science progresses)

Exploring the significance of the Jack Hills zircons

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