PMA

Heat generated by the core is passed to the mantle by conduction. Which option below best describes how the flow of heat through the mantle affects the movement of the Earth's tectonic plates?

• Heat conducted from the Earth's mantle moves tectonic plates due to the gravitational pull from the Earth's core.

• Heat is transferred from the mantle to the crust by radiation, which then causes the plates to move on the surface.

• Heated material in the mantle rises to the surface forming a heated cell, which causes the crust to harden and move the plates.

• Heated material in the mantle expands and rises towards the crust where it then cools, forming a convection current, which causes plate motion.

Tags

NGSS.MS-ESS2-1

What property of the magnifying lens is most responsible for allowing it to magnify the penny?

• It can reflect light

• It can refract light

• It can increase the intensity of light

• It can increase the wavelength of light

What causes the spoon to appear bent?

• The reflection of light

• The refraction of light

• The absorption of light

• The mass of light

Tags

NGSS.MS-PS4-2

Which statements correctly describe infectious agents?

• Statements 1 and 2

• Statements 1 and 3

• Statements 2 and 4

• Statements 3 and 4

Tags

NGSS.MS-LS1-1

List the steps of the scientific method

d

e

f

c

b

a

Analyze results

Communicate results

Ask a question

Conduct experiment

Draw conclusions

Form a hypothesis

Tags

NGSS.MS-PS2-5

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

Which type of plate movement will result in a volcano forming at a subduction zone?

• When two continental plates collide.

• When two continental plates move apart.

• When an oceanic and a continental plate collide.

• When an oceanic and a continental plate move apart.

Use the following rok cycle model to answer the following question. WHich of the following events must occur at point 6 in order to transform sedimentary rock into igneous rock?

• Shifting tectonic plates push the sedimentary rock toward the poles where it freezes and hardens into igneous rock.

• Extreme winds and storms weather the sedimentary rock into particles which collect in rivers and are compacted into igneous rock.

• Rising oceans erode mountains of sedimentary rock into particles, which sink and get compacted into layers that form igneous rock.

• Tectonic plates push against each other driving sedimentary rock under Earth's surface where it melts into mama and turns into igneous rock as it cools.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

In which situation would a scientist prefer to use the Law of Superposition over radioactive dating?

• To determine which mountain peak on Earth's surface is the nearest.

• To determine the exact age of a human skeleton found in an ancient tomb.

• To determine which layer of sedimentary rocks at the bottom of a lake is oldest.

• To determine whether two dinosaurs whose fossils are found on different continents lived in the same time period.

Tags

NGSS.MS-ESS1-4

The picture below is Mount Hood at Mirror Lake in Oregon.

Which diagram below demonstrates the behavior of light that is responsible for the mountain observed in the water?

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Tags

NGSS.MS-PS4-2