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25 terms

The Atmosphere 1.1 The Air Around You

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weather
the condition of earth's atmosphere ar a particular time and place
atmosphere
envelope of gases surrounding earth, 78% nitrogen, 21% oxygen, 1% other gasses
oxygen
21% of earth's atmosphere
nitrogen
78% of earth's atmosphere
carbon dioxide
plants need it to survive
water vapor
water in the form of a gas; invisible
ozone
forms when lightning interacts with oxygen in the air
ozone
form of oxygen which contains 3 oxygen atoms in each molecule instead of the usual two
oxygen
gas needed for fire to burn
oxygen
plants and animals use it to release energy from food
carbon dioxide
plants and animals give it off as waste product when they break down food to produce energy
atmosphere
contains oxygen and other gases that living things need
atmosphere
traps energy from the sun, which keeps the Earth's surface warm and Earth's water in liquid form, another requirement of living things
atmosphere
protects Earth from dangerous radiation from the sun and from meteoroids
nitrogen
makes up more of the air than any other gas
oxygen
second most abundant gas in the atmopshere
oxygen
plants and animals take this gas directly from the air and use it to release energy from their food
carbon dioxide
plants need this gas to make food
carbon dioxide
when cells of plants and animals break down food to produce energy, they give off this gas as a waste product
argon and carbon dioxide
make up most of the other 1% of the atmosphere
trace gas
refers to a gas or gases which make up less than 1% by volume of the earth's atmosphere
water vapor
not the same as steam, which is made up of tiny droplets of liquid water
particles
dust, smoke, salt and other chemicles in the air
nitrogen, oxygen, argon, carbon dioxide
four most common gases in dry air
3 ways the atmosphere is important to life on Earth
1) contains oxygen for us to survive, 2) keeps the Earth's surface warm enough for water to exist as a liquid by trapping energy from the sun, 3) prevents Earth from being hit by most meteoroids