Earth's Water
This fraction is the amount of water that covers the Earth's surface.
3/4
The amount of water on Earth _________ changes.
never
This is where a warm air mass and a cold air mass meet.
a front
These types of gasses, such as water vapor and carbon dioxide cause global warming.
greenhouse gasses
This measures the amount of rain.
rain gauge
Most of the Earth's water is this type.
saltwater
The water cycle is powered by this.
the sun
Like oil and water, this is what a warm air mass and cold air mass never do.
mix
air
An example of this is morning dew on grass.
condensation
Earth's water can exist as these three states of matter.
solid, liquid, and gas
Most of the earth's atmosphere is made up of this gas.
nitrogen
This is the direction of global winds.
west to east
The scientist who studies weather
meteorologist
This is the amount of water vapor in the air.
humidity
This is where the salt in the oceans comes from.
rocks and soils on land
A high temperature will cause water to do this very quickly.
evaporate
These three things determine our weather.
air, water and temperature
Tree rings and ice cores give scientists information about this.
Earth's past weather and climate
This instrument measures air pressure.
barometer
The warmer the ocean water, the ___________ salt can dissolve in it.
more
Name the four steps of the water cycle in order.
1. evaporation
2. condensation
3. precipitation
4. storage
The three basic types of clouds are these.
cumulus, stratus, and cirrus
The amount of air pressure does this when you go high up into the atmosphere
drops
A meteorologist would use this to measure winds of a tornado.
anemometer