Weather Tools
A tool used to measure air temperature
What is a thermometer?
The four forms of precipitation?
What is rain, snow, sleet and hail?
What is evaporation and condensation?
A storm with lightning and thunder
What is a thunderstorm?
The two things needed to form a tornado
warm, moist air and cool, dry air meet and a change in wind speed
A tool used to indicate wind direction and speed
What is a wind sock?
Balls of ice get blown up into the cold atmosphere several times. Each time, another layer of water on the ball of ice becomes frozen. This makes the ball larger and larger until it finally hits the ground)
What is hail?
These clouds are thin and wispy and appear during good weather.
What are CIRRUS clouds?
An electrical current produced during a thunderstorm
What is lightning?
a tool used to measure humidity in the air
What is a hygrometer?
shows wind direction
What is a weather vane?
Precipitation that occurs when the temperature gets below freezing 32* F
What is snow?
These clouds are low and gray. They cover most of the sky and are associated with rainy weather.
What are stratus clouds?
When warm and cool air meet and an increase in wind speed all happen at the same time, it causes the air to start spinning.
What is a tornado?
a front that is stalled or moving very slowly.
What is a stationary front?
measures wind speed
What is an anemometer?
As snow falls through warm air, it begins to melt into raindrops. As the melted snow falls through a colder layer of air, it refreezes.
What is sleet?
These clouds have a dark, gray base. They bring sudden heavy rain, thunder, lightning. Rainbows can sometimes be seen with these clouds
What are CUMULONIMBUS clouds?
a large wave that forms after an earthquake or volcano eruption
What is a tsunami?
A front that moves slowly and brings warmer weather.
What is a warm front?
measures air pressure
What is a barometer?
The sun heats up the water on Earth’s surface. The water turns into water vapor. The water vapor evaporates and travels into the atmosphere. Clouds form from all of the water vapor. Condensation occurs, and the water vapor in the clouds become very heavy
What is the water cycle?
These are mid level clouds. They are big and puffy and are spaced out irregularly
What are CUMULUS clouds?
These form over the ocean, are much larger than tornados and can last many days.
What are hurricanes (Atlantic) Typhoon (NW Pacific) or Cyclone (S. Pacific and Indian Ocean)
The weight of the molecules pressing down on Earth
What is air pressure?