Unit 7 Review

As water is heated by the sun, it becomes less dense and rises. What causes the decrease in the density of warming water?

• The water particles move faster, causing the water to expand.

• The water particles move slower, causing the water to expand.

• The water particles move faster, causing the water to contract.

• The water particles move slower, causing the water to contract.

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NGSS.MS-PS1-4

Sarah is investigating the transfer of energy in the form of heat. One process that transfers energy between two objects is conduction. Which statement is NOT true about conduction?

• It can transfer energy through empty space.

• It requires direct contact between the objects.

• It involves a transfer of energy in the form of heat.

• It results in a change of temperature in both objects.

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NGSS.MS-PS3-3

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Leanne created the following diagram to show the process that warms the air above a lake. She decided to label each step with the energy transfer that is happening. Which step should Leanne label conduction?

• Step 1

• Step 2

• Step 3

• Step 4

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Light from the sun heats Earth’s atmosphere. When the air becomes warmer, it expands, resulting in weather patterns. Which type of energy increases as air expands?

• Kinetic Energy

• Nuclear Energy

• Chemical Energy

• Electrical Energy

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The Coriolis effect greatly affects the paths of air circulation on Earth. What causes the Coriolis effect?

• The sun

• The moon

• Earth’s Rotation

• Earth’s Revolution

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NGSS.MS-ESS2-6

The air above Earth’s surface is at different temperatures. What is responsible for this difference in temperature?

• The sun

• The moon

• Landforms

• Earth’s rotation

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NGSS.MS-ESS2-6

Some characteristic types of wind result where global pressure belts meet. Which of the following is a zone of weak, variable winds located at 30°N and 30°S latitude?

• Jet Streams

• Local Winds

• The Doldrums

• The Horse Latitudes

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NGSS.MS-ESS2-6

Rock and water absorb and release heat differently, causing localized air pressure differences. One result of these differences is land breezes. Which statement is true of land breezes?

• They originate in the day and blow toward the land.

• They originate in the day and blow toward the water.

• They originate in the evening and blow toward the land.

• They originate in the evening and blow toward the water.

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NGSS.MS-ESS2-5

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How does convection cause ocean currents?

• During the process of convection, energy is transferred to the atmosphere, forming winds. These winds power surface currents.

• During the process of convection, the heating of surface water by the sun results in upwelling.

• During the process of convection, energy in warm water is lost to its surroundings. The water cools, becomes denser, and sinks.

• During the process of convection, more minerals and gases dissolve in warm water. This increases the density of the warm water and causes it to sink.

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NGSS.MS-ESS2-6

Which of the following can cause an increase in density that results in a deep ocean current?

• The sun heats the water’s surface.

• A warm wind blows across cold water.

• An iceberg melts, adding fresh water to ocean water.

• Warm water loses energy to its surroundings and cools.

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NGSS.MS-ESS2-6

NGSS.MS-PS1-4