Science EOG Practice

One morning, a student notices that the grass in the area is wet, although it had not rained during the night. What could have caused the grass to be wet?

• During the night, water had evaporated from the trees in the area.

• The air above the ground became warmer during the night and caused

  precipitation.

• When the air cooled above ground during the night, water vapor condensed

  on the grass.

• The grass soaked up water from the ground during the night.

Two liquids are poured together, and a solid substance forms with no liquid remaining. Liquid 1 has a mass of 200 grams, and liquid 2 has a mass of 100 grams. What would be the total mass of the solid substance formed?

• 100 grams

• 150 grams

• 250 grams

• 300 grams

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Which is the best example of a new substance forming?

• lighting a match

• cutting a piece of paper

• popping a balloon

• hitting a nail with a hammer 27

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How do plants return water back into the environment?

• by evaporation

• by condensation

• by runoff

• by transpiration

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Stirring a cup of hot tea causes a metal spoon to get warm. Which statement best explains why the spoon gets warm?

• Heat energy transfers from the metal spoon to the hot liquid.

• Heat energy transfers from the hot tea to the spoon.

• Heat energy transfers from the air to the hot liquid, and then to the spoon.

• Heat energy transfers from the hot liquid to the cup, and then to the spoon.

When the sun warms water, which resulting process occurs?

• precipitation

• runoff

• evaporation

• condensation

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After lake water flows through a dam, which processes are most responsible for helping replace the water in the lake?

• precipitation and runoff

• transpiration and condensation

• condensation and runoff

• transpiration and precipitation

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A storm system moves from the west to the east over the southern United States. Which global pattern most likely causes the storm system to move from west to east?

• the jet stream

• the Gulf Stream

• the trade winds

• the polar easterlies

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Which best describes how fronts form?

• Weather fronts are formed by very high winds and heavy rain.

• Weather fronts are formed by light winds and slight precipitation.

• Weather fronts are formed when air masses with the same

  temperatures meet.

• Weather fronts are formed when air masses with different

  temperatures meet.

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Why does a flannel blanket provide warmth to a person on a cold night?

• The blanket is a conductor of heat, so it warms the person’s body.

• The blanket is unable to remain cool, so it warms the person’s body.

• The blanket is warmer than the air in the room, so it warms the

  person’s body.

• The blanket acts as an insulator, slowing the rate at which a person’s body loses heat.

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