Unit E: Weather
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Air | The mixture of gases found in Earth’s atmosphere. Dry air is primarily nitrogen (N2 = 78%) and oxygen (O2 = 21%).
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| Altitude | The elevation above sea level.
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| Atmosphere | The gases that surround a planet or moon. On Earth, the air.
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| Climate | The average weather for a place over a long period of time (usually at least 30 years).
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| Clouds | A visible collection of water droplets in the atmosphere. Clouds usually form hundreds of meters above Earth’s surface but fog is a cloud formed near Earth’s surface.
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| Condensation | The process of change in state from gas to liquid, or the droplets of liquid formed from this process.
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| Energy | The ability to cause motion. Energy comes in many forms and is measured in joules.
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| Evaporation | The process of change in state from a liquid to a gas.
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| Exosphere | The uppermost layer of the earth’s atmosphere.
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| Freezing | To change from a liquid to a solid state.
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| Front (cold, warm) | A boundary where a mass of air meets another air mass of a different temperature.
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| Gulf Stream | A strong ocean current that flows on the surface of the Atlantic Ocean from the Gulf of Mexico to northwestern Europe.
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| Humidity | The amount of water vapor in the air.
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| Hypothesis | A possible explanation of some phenomena, based on observations, and which suggests a means of being tested,
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| Landform | A feature of the earth’s surface such as a lake, stream, valley, canyon, hill, ridge, or mountain.
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| Latitude | The distance in degrees of a location north or south of the equator
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| Melting | To change from a solid to liquid state.
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| Mesosphere | A layer of the earth’s atmosphere where temperature decreases with altitude; between the stratosphere and thermosphere.
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| Meterologist | A scientist who studies the weather.
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| Ocean Currents | Regular movements of large amounts of water in the ocean.
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| Precipitation | The movement of water, in solid or liquid form, from the atmosphere back to the surface of the earth. Rain, snow, sleet, and hail are examples.
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| Pressure (low and high) | A force applied to a surface. It is measured in a force unit per area, such as psi (pounds per square inch) or millibars (100 newtons per square meter).
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| Prevailing wind | The most common wind direction for a region. On the earth, the direction of the prevailing winds are related to the latitude of the region.
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| Stratosphere | The region of Earth’s atmosphere between the troposphere and mesosphere.
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| Thermosphere | The region of the atmosphere above the mesosphere in which temperature steadily increases with altitude.
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| Troposphere | The lowest layer of the earth’s atmosphere, where people live and most weather occurs.
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| Water Cycle | The movement of water from one state to another as it circulates through the oceans, and atmosphere. Water evaporates from the surface, rises and cools at higher elevations, condenses as rain or snow, and falls to the surface where it collects in lakes.
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| Water Vapor | Water in a gaseous state.
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| Weather | The condition of the atmosphere, including temperature, precipitation, and cloud cover, at a particular time and place.
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| Wind | The horizontal movement of air from areas of higher pressure toward areas of lower pressure.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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