7th Grade Unit 2 Part 2 Practice

Areas along coastlines, such as Florida, often do not experience winters as severe as areas inland 

– even though some of these coastal areas lie further north.  Why do coastal areas tend to have more mild winter weather patterns?

• Cold ocean currents only flow east to west and cannot reach inland areas.

• Warm ocean currents only flow east to west and cannot reach inland areas.

• Cold ocean waters cool the air above them, the cool air flows over coastal areas, but 

    cannot reach the areas inland.

• Warm ocean waters heat the air above them, the warm air flows over coastal areas, but 

              cannot reach areas inland.

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Amy and Scott are preparing a presentation on climate in Florida. Which of the following statements would BEST support the idea that Florida has a subtropical climate?

• Florida had record high temperatures this past summer.

•  Florida received 35 inches of rain this past year.

• Florida’s location near the equator makes it cooler than most of the United States.

•  Florida has a long pattern of experiencing hot, humid summers and mild to cool winters.

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Humid weather occurs most often during warm, summer months. Why are the summer months more humid?

• Cold air rises quickly into the atmosphere.

• Air holds ice in the winter and water vapor in the summer.

• Warm air holds more water vapor than cold air.

• Water is only present in the air during the summer.

The ocean's surface is generally warmer than deeper ocean waters. Which of these is a direct result of uneven heating of water in the oceans due to solar energy?

• ocean currents

• salt in the ocean

• icebergs in the ocean

• ocean tides

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Solar energy does not warm Earth’s surface evenly. For example, during the day, land areas warm up faster than nearby bodies of water. How does this uneven warming affect the movement of air over land and water?

• The cooler, denser air above the water flows toward the warmer, less dense air above the land, causing a sea breeze.

• The warmer, less dense air above the land flows toward the cooler, denser air above the water, causing a land breeze.

• The cooler air over the water would absorb water vapor and rise, resulting in rainy conditions 

  over the shoreline.

• The warmer air over the land would transfer energy to the cooler air by conduction, leading to a uniform air temperature.

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During a summer day on the beach, the sand on the beach and the air temperature feel hot, but the ocean water feels cold.  At night, why would the ocean water be warmer than the air?

• As a cool breeze blows off the water onto the land, the water warms up.

• The heat from the air transfers to the water during the night, making the water warmer than it 

       was during the day.

• Air changes temperature faster than water, so the water is warmer and the air is much cooler 

       than it was during the day.

• Air stays warmer longer than water so your body is warm when you jump into the water.

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El Niño is a weather event that causes great changes in weather worldwide. During an El Niño event, the polar jet stream shifts northward. Which change will an El Niño event MOST LIKELY cause?

• colder temperatures in the southern United States

• drier than usual weather in the northern United States

• drier than usual weather in the southern United States

• warmer than usual temperatures in the northern United States

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Adding or removing heat from a system may result in a temperature change. Ben found a penny outside on the hot sidewalk.  He brought it inside and added it to a cup of room temperature water.  What will happen to the penny’s temperature once he puts it in the cup of water?

• the heat will transfer from the penny to the water

• the heat will transfer from the water to the penny

• the penny will not change temperature

• the penny will change state

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The transfer of energy as heat occurs all around us. When a warmer stream flows into a cooler lake, which of the following happens?

• The stream water absorbs cold from the lake water.

• The lake water transfers heat to the stream water.

• The stream water transfers heat to the lake water.

• The lake water absorbs cold from the stream water.

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A large piece of a glacier broke off into the ocean.  Which of the following actions would you predict will occur to the ocean water?

• Heat will flow from the water to the ice.

• Heat will flow from the ice to the water.

• Cold will flow from the water to the ice.

• Cold will flow from the ice to the water.

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