*PS Fact Packet #29-32, 52-60

Weather is impacted by -

• by the air pressure, humidity, and thermal energy (temperature).

• anemometer, barometer, and thermometer

• rain, snow, and sleet

• wind, hurricanes, and tornadoes

Ozone is helpful when it is in the __________________, and harmful when it is in the ___________________, because it is seen as pollution.

• mesosphere, stratosphere

• troposphere, stratosphere

• stratosphere, troposphere

• mesosphere, and thermosphere

When water vapor is added to the air, the moisture level increases. This is known as

• air pressure

• humidity

• thermal energy

• water spout

A cumulonimbus cloud usually brings what kind of weather?

• thunderstorms

• nice, sunny day

• fair weather

• rain, then sunny

Cirrus clouds usually mean that fair weather is occurring. What do they look like?

• Clouds that cover the sky like a blanket

• large, puffy clouds

• Thin, wispy, and feathery clouds high in the sky

• Grey, dark clouds

Stratus clouds -

• cover the sky and indicate rain

• cover the sky like a blanket and sunny

• are wispy, feathery clouds

• are low to the ground and called fog

When the weather conditions are rainy, and storm weather with a decrease in atmospheric pressure, it is called a __________ pressure.

• high

• low

A _________________ front is the boundary between air masses that have warmer air behind the front.

• warm

• cold

• high

• low

The weather conditions when it is sunny, a (H, L) is shown on the weather map.

• H

• L

Days that are cloudy or rainy have a(n) (H, L) shown on the weather map.

• H

• L