ConcepTest: Ocean Element Profiles - 1 part of Examples
Which element could have a depth profile in the ocean that looks like this? A. Oxygen, an element produced during photosynthesis B. Barium, an element required in trace amounts for micro-organisms C. Nitrogen, a ...

ConcepTest: Magnetic Inclination part of Examples
The diagram below shows the magnetic inclination determined for three lava flows preserved in a cliff. (Assume that Earth's magnetic field was in the same orientation as it is today.) What happened to the ...

ConcepTest: Radioactive Decay part of Examples
If radioactive decay began with 400,000 parent atoms, how many would be left after 3 half lives? a. 200,000 b. 100,000 c. 50,000 d. 25,000

ConcepTest: Relative Time Diagram #2 part of Examples
Match the features in the relative time diagram below with the events described in the short sentences. Assume all rocks are sedimentary unless otherwise indicated. Which unit was formed before A but after E? a. C ...

ConcepTest: Oldest Rock Dating #1 part of 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: Igneous Process Identification part of Examples
An ice cube melting in hot tea is analogous to which igneous process? a. fractional crystallization. b. assimilation. c. partial melting. d. intrusion.

ConcepTest: Egg-Rock Analogy part of Examples
Cooking an egg could be seen as an analog for the formation of a. igneous rock b. metamorphic rock c. sedimentary rock.

ConcepTest: Rock Cycle Temperature Profile #2 part of Examples
The graph below illustrates how the temperature changed with time for part of the rock cycle. Which of the following is best represented by the graph? a. sediment is lithified to form sedimentary rock b. ...

Conceptest: CFCs and ozone part of Examples
Analyze the following student descriptions of the relationship between CFCs and ozone. Which is the best? a. CFCs are manufactured gases that destroy the ozone layer and produce oxygen. b. Chlorine forms from the ...

Conceptest: Cooling rate of Igneous Rocks part of Examples
What is the most likely cooling rate and composition of a light colored, small grained igneous rock? A. Cooled rapidly, low silica B. Cooled rapidly, high silica C. Cooled slowly, low silica D. Cooled slowly, high ...