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: Temperature and Depth of Rock Formation #1 part of Examples
The diagram below illustrates five potential combinations of temperature and depth that are characteristic of different rock types. Answer the question that follows using the diagram. Which letter is the best ...

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: Calculating Rock Age from Parent Radioactive Isotope part of Examples
A radioactive (parent) isotope of element X is discovered in different amounts in four rocks (A, B, C, D) of the same composition. Which rock has the oldest calculated age? a. 15% of element X remains in Rock A b. ...

ConcepTest: Cross-Section of Plate Boundaries part of Examples
The map below shows the plate configurations along the western margin of North America. Which of the four diagrams on the right best represents a cross section through the outer layers of Earth along the line X-Y?

ConcepTest: Change in Porportion of Parent Isotopes Over Time part of Examples
Which graph below best represents the change in the proportion of unstable (parent) radioactive isotopes with time? a. A b. B c. C d. D

ConcepTest: Best Index Fossil part of Examples
Four outcrops of rock are examined in different locations of a state. The rock types and the fossils they contain are illustrated in the adjacent diagram. Which fossil would be the best choice to use as an index ...

ConcepTest: Hot/Cold Water Circulation part of Examples
A fish tank is filled almost to the brim with room temperature water. Two containers of cold and hot water are prepared. Red coloring is added to the hot water, blue coloring is added to the cold water. The cold ...

ConcepTest: Topography and Water Table part of Examples
The four schematic cross sections below show the potential groundwater resources for an area of hills and valleys. Assume the region receives plentiful rainfall and is in underlain by an open aquifer composed of ...

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