As altitude _____________, temperature _____________ in the troposphere.

The ______________ is the coldest layer.

The thermosphere is very ______.

______________is the force exerted by atmospheric gases pushing on an object.

Air pressure is greatest in the _________________.

Air pressure ______________ through the layers the farther away from the surface as Earth’s pull of______________ decreases.

________________ are made of water vapor that condenses in the troposphere.

The two ways water enters the atmosphere are _______&_______.

____________ is the process of plants releasing water vapor.

________________ is formed when water vapor condenses directly onto surfaces such as leaves or a car overnight.

________ is formed when water vapor changes directly from gas to ice crystals on a surface.

________ is when precipitation falls and moves back toward sea level as surface-water flow or as groundwater flow.

These clouds form at medium or low elevations and are spread out layer upon layer like a sheet.

Clouds that form when condensation occurs near the ground are called _____.

________ ________ are huge bodies of air that form over water or land in tropical or polar regions.

When neither a cold air mass nor a warm air mass moves at a frontal boundary, the result is a__________ _______ and it may produce long periods of ____________.

_______ pressure systems usually signal nice or fair weather with winds moving clockwise.

______ are a rapidly moving funnel-shaped clouds that extend down from a storm cloud.

Condition of Earth’s atmosphere at any specific time.

A tool used to measure wind speed.

A two-thermometer instrument spun around a rod or pole (also referred to as a wet dry bulb); used to measure relative humidity.

Tool used to measure air pressure.

Used on weather maps to indicate high and low pressure systems.

Used on a weather map to indicate temperature ranges.

The information on a ________ ________can include cloud cover, temperature, wind direction and speed, precipitation and barometric pressure.

The __________ heats up and releases its heat fairly quickly, but the ___________ needs to absorb lots of solar energy to warm up.

The ________________ ____________ is the process of heat from the Sun is trapped in Earth's atmosphere.

Warm air near Earth’s surface rises and then cools and then drops, creating a _________________ in the atmosphere.

Convection in the atmosphere around the earth causes _________ _________.

The unequal heating of Earth causes ____________ ____________ (tropical, temperate, polar).

Because convection cells are in place in the atmosphere and earth is spinning on its axis, the global winds appear to curve. This is known as the __________ ________.

Weather systems in the United States USUALLY move across the country from __________ to ___________.