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# ConcepTest Examples

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# Subject: Geoscience

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ConcepTest: Einsteinium Half-life part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
The isotope Einsteinium-253 has a half-life of 20 days. If you began an experiment with an 80-gram sample of Einsteinium-253, how much would remain after 60 days? a. 60 grams b. 40 grams c. 20 grams d. 10 grams

ConcepTest: Oldest Rock Dating #1 part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
The world's oldest known rock is approximately 4 billion (4,000 million) years old. What are the approximate relative percentages of parent and daughter isotopes for Uranium-238 and Lead-206 (half-life = 4.5 ...

ConcepTest: Relative Time Diagram #5 part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
Assuming all rocks are sedimentary unless otherwise indicated, what is the possible age of F if A is 100 million years old and D is 70 million years old? a. 85 Myrs b. 170 Myrs c. 55 Myrs d. 110 Myrs

ConcepTest: Wax Reshaping part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
Imagine that you find a wax candle on a table in a warm room. The candle bends when you push down on both ends and push up in the middle. When you put the candle back on the table it maintains the bent shape. This ...

ConcepTest: Divergent Boundary Sketch part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
The figure below was drawn by a student to show the relationship between earthquake epicenters (filled circles) and a divergent plate boundary (red line). The figure represents a boundary between two oceanic ...

ConcepTest: Seismic Waves #1 part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
Examine the diagram below that shows a cut-away view of a section of Earth's crust containing a fault. Answer the question below assuming that an earthquake originated at the focus shown on the fault surface. ...

ConcepTest: EQ Distribution, North America part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
Which of the maps below best represents the distribution of magnitude 6 or greater earthquakes in North America within a decade? a. b. c. d.

ConcepTest: Fault Scarp part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
Examine the image below that shows the flank of the Grand Teton mountain range of northwestern Wyoming. Which location represents a fault scarp in the picture? a) 1 b) 2 c) 3 d) 4

ConcepTest: P Wave Arrival part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
Examine the seismogram below that shows a 26-minute long record of the seismic waves from the 1906 San Francisco earthquake as it was received by a seismograph station in Germany, over 14,000 km away. Which letter ...

ConcepTest: Global Earthquake Occurrence #1 part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
Which of the locations on the world map below is most likely to experience a magnitude 6 or greater earthquake? a. b. c. d.