Elements of Weather
the condition of Earth's surface at a certain place or time
What is weather?
A tool to measure temperature
What is a thermometer?
a collection of small water droplets or ice crystals that are suspended in the air
What is a cloud?
air that moves parallel to Earth's surface
What is wind?
a boundary between two air masses
What is a front?
the amount of water vapor in the air
What is humidity?
What is an electrical thermometer?
When water droplets combine to make a cloud
What is condensation?
winds that go around the globe
What are global winds?
When a cold air mass moves quickly and forces a warm air mass to move upward. If the warm air mass is moist it creates a cloud, usually ends in heavy rain or snow
What is a cold front?
The movement of water between the atmosphere, land, and the ocean
What is the water cycle?
a tool used to measure wind direction
What is a wind vane
When condensation occurs near land and ______ forms
What is fog?
2 main jet streams in each hemisphere
What are subtropical and Polar jet streams?
When a warm air mass follows a retreating cold air mass. The warm air rises and the cold air mass condenses into a cloud, usually ends in rainy weather
What is a warm front?
All kinds of precipitation
What is rain, sleet, hail, and snow?
a tool used to measure wind speed
What is an anemometer?
The temperature at which the rate of condensation is equal to the rate of evaporation
What is the dew point?
global winds traveling at least 92 kilometers an hour
What are jet streams?
There isn't enough wind to push the air masses so it doesn't move, usually in unchanging weather
What is a stationary front?
the measure of transparency
the reason scientists use these tools
What is to collect data and record?
2 ways clouds can be classified
What is by altitude and shape?
How wind is caused
What is uneven heating of Earth's surface?
The different types of fronts (3)
What is a warm, cold and stationary front?