Vocabulary
Define Atmosphere
Mixture of gases that surrounds Earth
What is the layer closest to us?
The troposphere
What part of the water cycle has plants 'sweating'
Transpiration
Which layer in the atmosphere is the densest?
Troposphere
Define Condensation
Water molecules cooling and changing from a gas to a liquid.
What is Air pressure
A force of air molecules on a surface
Which layer has the ionosphere?
Thermosphere
What powers the water cycle?
the sun
What part of the water cycle has water molecules starting at a liquid and changing into a gas?
Evaporation
Define Evaporation
The sun heats up liquid water and it changes into a gas.
Define Humidity
The amount of water vapor in the air.
What is the coldest layer?
Mesosphere
What step has water molecules starting at a gas and turning into liquid?
Condensation
What happens to the air pressure as you travel up into the atmosphere?
It decreases.
What is precipitation?
Water that returns to Earth in the form of rain, snow, sleet or hail
What is Dew Point?
The temperature at which a gas condenses into a liquid.
What is the hottest layer?
Thermosphere
What causes water to 'run off' of higher elevations?
Gravity
If the humidity is high what is likely to happen?
Higher chance of rain and it will feel warm.
What is runoff?
Water that collects back into bodies of water.
Define the Greenhouse effect.
Solar Energy that turns into heat and is trapped in the atmosphere.
What are the gases and percentages that make up the atmosphere?
Nitrogen -78%
Oxygen- 21%
Other Gases- 1%
What are the 5 steps of the water cycle
Evaporation, Condensation, Transpiration, Precipitation and Runoff.
What blocks gases and water vapor from leaving the atmosphere therefore causing the greenhouse effect?
The ozone layer
What is the process of transpiration?
Water travels through leaves and is released into the air.