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Name _____________________________

Date ___________________

Weather

Select the definition that most nearly defines the given word.

1.   moisture    A light gentle wind.    An instrument used to measure the amount of rain that has fallen.    Water vapor content that is in the air.    The gases that surrounds the earth. On Earth, this mass of gases is divided into several layers and is composed mainly of nitrogen (78%) and oxygen (21%).

2.   gale    A relatively high level of moisture in the air.    A brief rainfall.    The sound emitted by rapidly expanding gases that has been heated by lightning.    A strong current of air with speeds from 25 to 75 miles per hour.

3.   atmosphere    Any and all forms of water, such as rain, snow, or hail, which falls from clouds and reaches the ground.    The movement of air from areas of high pressure to areas of low pressure.    A condition that develops when water overflows their natural or artificial banks.    The gases that surrounds the earth. On Earth, this mass of gases is divided into several layers and is composed mainly of nitrogen (78%) and oxygen (21%).

4.   pressure    The force per unit area exerted by the weight of the atmosphere above a point on the earth's surface.    An instrument for measuring temperature.    The weight of air of the atmosphere pressing down on Earth.    White ice crystals that form when water vapor freezes in the air.

5.   thunder    A period of time when the temperature drops and stays below freezing point. Water will also begin to change to ice.    An instrument used for measuring the weight or pressure of the atmosphere. Weather forecasters generally use the mercury version of this instrument.    The change of a gas into a liquid when it is cooled (or when the gas loses its heat).    The sound emitted by rapidly expanding gases that has been heated by lightning.

6.   humid    An abnormal lack of rain over a long period of time where there is a shortage of water.    A relatively high level of moisture in the air.    Ice crystals that form on the grass and other surfaces during a very cold evening.    A light and continuous rain.

7.   snow    An instrument used to detect distant objects and measure their range by how they scatter or reflect radio energy.    White ice crystals that form when water vapor freezes in the air.    Frozen water.    A strong current of air with speeds from 25 to 75 miles per hour.

8.   rain gauge    The change of a substance from its solid state to its liquid state, such as when ice changes to water.    A metric temperature scale on which water freezes at 0 degrees and boils at 100 degrees.    A non-metric temperature scale on which water freezes at 32 degrees and boils at 212 degrees.    An instrument used to measure the amount of rain that has fallen.

9.   breeze    The mixture of gases, mainly nitrogen and oxygen, which surrounds the Earth's atmosphere.    The force per unit area exerted by the weight of the atmosphere above a point on the earth's surface.    A light gentle wind.    A feeling of slight coldness.

10.   frost    Water vapor content that is in the air.    Ice crystals that form on the grass and other surfaces during a very cold evening.    A prediction of the weather, normally given by a meteorologist.    Current weather where there is very little or no moisture in the air.

11.   Fahrenheit    An instrument used for measuring the weight or pressure of the atmosphere. Weather forecasters generally use the mercury version of this instrument.    A violent disturbance of the atmosphere, that may include strong winds, rain, snow, hail, or thunder and lightning.    A non-metric temperature scale on which water freezes at 32 degrees and boils at 212 degrees.    White ice crystals that form when water vapor freezes in the air.

12.   chill    The force per unit area exerted by the weight of the atmosphere above a point on the earth's surface.    A light gentle wind.    A feeling of slight coldness.    The change of a gas into a liquid when it is cooled (or when the gas loses its heat).