6th science BM2 Review

Most of the sun's radiation passes through Earth's atmosphere and is absorbed by land and water. The diagram below shows some of the ways in which air is warmed. What kind of energy transfer is shown by the movement of the air labeled B in the diagram?

• conduction, when air particles collide and transfer energy as heat

• radiation, when the energy in electromagnetic waves warms the air

• convection, when warm air rises upward, spreads out, and transfers energy as heat

• conduction, when warm air rises upward, spreads out, and transfers energy as electromagnetic waves

The model below shows the water cycle. What is the purpose of this model?

• to illustrate how water travels from Earth's surface into the atmosphere and back to Earth's surface again

• to illustrate how some water is lost on Earth as some of it never returns to Earth's surface once it evaporates

• to show how severe weather forms in the water cycle

• to show how Earth's water formed billions of years ago

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NGSS.MS-ESS2-4

Why is it important for scientists to find sources other than fossil fuels for energy production?

• Not enough organic material exists to replace fossil fuels.

• The formation of fossil fuels results in pollution.

• Fossil fuels store energy for a short period of time.

• It takes a very long time for fossil fuels to form.

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Most of Earth's surface is covered by

• rocks.

• craters.

• water.

• ice.

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NGSS.MS-ESS2-4

Freshwater is water that contains little or no salt. Which of the following is least likely to be a source of freshwater?

• glaciers

• lakes

• oceans

• rivers

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NGSS.MS-ESS2-4

What would happen if the lamp were removed from this model?

• The temperature of the aquarium would greatly increase.

• The clay in the mountain would harden more quickly.

• The ice would continue to stay frozen in the cup and not change states.

• The water at the bottom of the aquarium would evaporate more slowly.

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Which of the following characteristics alters the density of ocean water?

• temperature and wave speed

• salinity and temperature

• wave speed and wave size

• wave size and salinity

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NGSS.MS-ESS2-6

The diagram shows Earth, the Moon, and the Sun during neap tides. When the Moon is in its first quarter and third quarter phases, the gravitational forces of the Sun and the Moon pull at 90 degree angles from one another. This means that when the Moon is in its first quarter and third quarter phases,

• high tides are experienced worldwide at the same time.

• low tides are experienced worldwide at the same time.

• high tides are at their lowest levels.

• low tides are at their lowest levels.

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How do ocean currents on the water’s surface transfer energy?

• Currents transfer heat among the tropical latitudes.

• Currents transfer heat from deep ocean water to shallow water.

• Currents transfer heat from warm tropical latitudes to cooler latitudes.

• Currents transfer heat from the Pacific Ocean to the Atlantic Ocean.

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NGSS.MS-ESS2-6

The graph shows the relationship between the surface temperature of the sea and the intensity of a hurricane. Which BEST describes the relationship shown in the graph?

• Cooler ocean water can create less powerful hurricanes due to increased evaporation.

• Cooler ocean water can create more powerful hurricanes due to decreased evaporation.

• Warmer ocean water can create less powerful hurricanes due to decreased evaporation.

• Warmer ocean water can create more powerful hurricanes due to increased evaporation.

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