Earth & Atmosphere
What is the mixture of gases that surrounds the earth called?
The atmosphere
The layer that is closest to the Earth is the _____________.
Troposphere
What is the name of the "layer" in the Atmosphere that protects us from UV rays
Ozone
What type of heat transfer is when hot fluids rise and cool fluids sink?
Convection
When you touch a hot cup of coffee
Conduction
How many layers of the atmosphere are there?
5
In the mesosphere, meteors burn up and turn into _____________.
shooting stars
What are the two biggest gasses that make up the atmosphere?
Nitrogen and Oxygen
The transfer of heat energy from the sun to Earth.
Radiation
The warmth you feel from a campfire
Radiation
True or False:
The atmosphere keeps us warm, gives us oxygen to breathe, and is where the weather occurs.
True
The Exosphere is the largest layer
True
What percentage of the atmosphere is made up of nitrogen and what percentage of the atmosphere is made up of oxygen?
78% Nitrogen and 21% Oxygen
What type of heat transfer occurs through direct contact when objects are touching?
Conduction
The AC running on in your house
Convection
The further up in Earth's troposphere you get, the temperature becomes more ________ & less _______
Cold and dense
What layer is the ozone located in?
Stratosphere
In polar regions, ions radiate energy as shimmering lights called
Auroras
As water is heated, the particles start to
separate
Radiation is when _____________ waves travel through space, without direct contact.
electromagnetic
In the mesosphere, meteors burn up and turn into _____________.
shooting stars
What layer is the International Space Station in?
Thermosphere
What is the measure of force with which air molecules push on a surface?
Air Pressure
Explain the reason why cold air usually sinks to the bottom and warm air rises up?
Cold air more dense than warm air, therefore sinks to the bottom
The biggest source of radiation comes from the
Sun