Rocks on Earth's surface can provide evidence for the composition of Earth's interior. Which of the following statements are true? a. Measuring the magnetic field around a volcanic rock can help us understand processes in Earth's core. b. Analyzing the composition of a oceanic basaltic rock can help us understand the composition of Earth's mantle. c. Measuring the temperature of a volcanic rock can help us understand the temperature in Earth's core. d. Calculating the density of a volcanic rock can help us estimate the density of the crust.

A museum is designing an exhibit that allows visitors to examine "pieces" of each of Earth's layers. Match the sample to the layer that it best represents. a. Basalt, b. Granite, c. Peridotite. d. Iron meteorite. 1. Core, 2. Mantle, 3. Oceanic crust, 4. Continental crust.

What is the composition of Earth's core?

Which of the following statements about plate tectonics are true? Choose all correct responses. a. Earth's gravity is a driving force for plate tectonics. b. Plate tectonics is just a theory that has not yet been proven. c. Volcanoes and earthquakes occur only along the boundaries of tectonic plates. d. Earth goes through periods of increases and decreases in volume as a result of plate tectonics. e. Seafloor spreading would not occur if convection in the core did not generate a magnetic field. f. The energy that drives plate motions comes primarily from sunlight that is absorbed into Earth's interior. g. The processes that occur along a plate boundary depend on the type of crust that is found along the boundary. h. People who live along the boundaries between tectonic plates are more likely to be directly affected by plate tectonics than those who live in the middle of a plate.

A student is building a model to demonstrate and explain mantle convection. Which model is most accurate? a. Toy bulldozers are placed on opposite sides of a carpet, causing the carpet to crumple. b. A bar magnet is placed inside a ball, causing iron filings to form a pattern around the ball. c. An electric current is passed through a copper wire surrounding a nail, causing the nail to become magnetized. d. A lamp heats a waxy substance in the bottom of a container, causing it to rise up to the top of the container, where it cools and then sinks again.

Which of these maps would be most useful in determining the location of lithospheric plates? a. A map of granitic rocks and basaltic rocks, b. A map of earthquake epicenters and active volcanoes, c. A map of the boundaries between dry land and ocean water, d. A map of the boundaries between continental crust and oceanic crust.

Describe how convection results in the motion of both matter and energy in Earth's mantle.

Our understanding of the composition, structure, and dynamics of Earth's interior is based on direct and indirect evidence. Match each interpretation about Earth's core with evidence that supports it. Evidence a. Some types of seismic waves disappear at the base of the mantle. b. Some rocks show evidence that Earth's magnetic poles have reversed over time. c. Earth's bulk density is $5.5 \mathrm{g} / \mathrm{cm}^{3}$, but the rocks of the crust have a density of only $27-3.0 \mathrm{g} / \mathrm{cm}^{3}$.

Describe the composition (mineral/ rock makeup) of Earth's crust, mantle, and core. How did scientists determine the composition of each layer?

What if Halley's model were correct? How do you think seismic waves would behave as they traveled through Earth? How would seismic evidence of Earth's interior be different?

Let f(x)=x^2+3x and g(x)=2x-1. Perform the composition or operation indicated.

$$\left(\frac{f}{g}\right)(-1)$$

Fill in the blank with the term that best completes the sentence. The process of _____ causes rocks to change composition when reacting with oxygen.

Write the following functions as a composition of two functions. Answers will vary. See the earlier exa

$$f(x)=\dfrac{2}{5 x-1}$$

Is the statement in the following problem true or false? Give an explanation for your answer.

The composition $f(g(x))$ is never the same as the composite $g(f(x))$.