HOW
Our atmosphere includes air, water and _______.
energy
Why is oxygen so important?
it is essential for all animal life
Air pressure refers to the amount of _____ that particles exert (or put upon) other particles.
force
Why can't water vapor be seen?
Vapor refers to a gas and water vapor is invisible if it is in a gas form (state/phase).
This layer is the closest to Earth:
troposphere
Heat causes particles to move ______ and _____ out.
faster, spread
This atmosphere layer protects us from meteoroids. There are gases in this layer that help burn them up before the reach Earth :) Yay!
mesosphere
What are the three forms of heat transfer?
conduction, convection and radiation
Which is more dense? Cold air or warm air?
cold air because the molecules are packed closer together
Our atmosphere has the ability to keep temperatures within a liveable range that allows ______ to exist here on Earth.
life
________ is energy that is transferred because of the motion of molecules (ex. a pot of boiling water)
convection
This is the thin layer of gases that surrounds our planet:
atmosphere
This atmosphere layer contains the most ozone:
stratosphere
An increase in altitude = _____ in air pressure
a decrease
The indirect transfer of heat is called ______. (ex. the sun warming your face)
radiation
Which layer of the atmosphere is the boundary with space?
thermosphere
REWIND QUESION:
He developed the theory of continental dirft?
Alfred Wegener
Conduction is a form of heat energy that is transferred by ________ contact.
direct (ex. touching a hot pan)
These are the TWO most abundant gases found in our atmosphere.
Nitrogen & Oxygen
REWIND QUESTION: When a group of stars in the sky form a picture, we refer to it as a:
constellation
O______ is a gas that helps trap solar energy before it escapes into space AND it helps to stabilize Earth's temperature so we can live happily ever after :) :) :)
Ozone
The troposphere is where Earth's _____ occurs.
weather
When water vapor (gas) condenses into tiny droplets of liquid water or ice, it forms _____.
clouds
These two layers help absorb radiation from the sun:
stratosphere and thermosphere
Air pressure is measured with this instrument:
barometer