Unit 4 Study Guide- Formation of the Earth

Ms. Maya is making a model to show how burning coal and other fossil fuels pollutes the air and can cause acid rain. In the model, she wants to show what would most likely happen to rocks and the surface of the Earth if humans continue to pollute the air by burning fossil fuels. Which of the following should she show in her model?

• Acid in rain chemically weathering rocks, speeding up the process of erosion on the surface of Earth

• Acid in rain physically eroding rocks, speeding up the process of weathering on the surface of the Earth.

• Acid in rain physically weathering rocks, speeding up the process of erosion on the surface of Earth.

• Acid in rain eroding rocks, speeding up the process of weathering on the surface of Earth.

Tags

NGSS.MS-ESS2-2

From least to most dense, what is the correct order of Earth's four major layers?

• crust, outer core, inner core, mantle

• inner core, outer core, mantle, crust

• crust, mantle, outer core, inner core

• mantle, inner core, outer core, and crust

What is the most likely reason that the bones of a Mesosaurus are found on the eastern coast of South America and on the western coast of Africa?

• flooding

• geographic isolation

• plate tectonics

• analogous structures

Tags

NGSS.MS-ESS2-3

What layer is your Mantle?

• Layer 5

• Layer 3

• Layer 1

• Layer 2

Tommy saw footage of a landslide on the news. He saw rocks falling from the side of a mountain, with some of them smashing into each other and breaking apart. Tommy witnessed:

• erosion and weathering

• erosion and compacting

• weathering and compacting

• weathering and sedimentation

Tags

NGSS.MS-ESS2-2

Which layer of the Earth is the thickest (2,891km) ?

• Crust

• Inner Core

• Mantle

• Outer Core

What would most likely happen if the temperature in the mantle decreased?

• The density of the mantle would decrease and tectonic plate movement would slow down.

• The convection currents would slow down and tectonic plate movement would decrease.

• The convection currents would speed up and tectonic plate movement would increase.

• The density of the mantle would increase and tectonic plate movement would slow down.

What Layer is the Crust?

• Layer 4

• Layer 1

• Layer 5

• Layer 3

Which description best represents heat flow and movement in Earth's mantle?

• When magma is heated, it becomes more dense and sinks. When magma is cooled, it becomes less dense and rises.

• When magma is heated, it becomes less dense and sinks. When magma is cooled, it becomes more dense and rises.

• When magma is heated, it becomes more dense and rises. When magma is cooled, it becomes less dense and sinks.

• When magma is heated, it becomes less dense and rises. When magma is cooled, it becomes more dense and sinks.

Tags

NGSS.MS-PS1-4

What layer in the Inner Core?

• Layer 5

• Layer 1

• Layer 3

• Layer 2