Earth's Atmosphere
You cannot see it or taste it, you cannot even smell it, it's called ____.
What is air?
__ of Earth's water is fresh.
What is 3%?
December's shadow is ______ than June's.
What is longer?
You have to throw an object ______ meters per second for it to go up into Earth's atmosphere.
What is 7,320?
A time of year that brings predictable __________________ to region on Earth.
What is climate?
_____ is the most abundant gas.
What is nitrogen?
The ______________ is the reason that we never run out of water.
What is the water cycle?
The sun rises in the East and sets in the _____.
What is West?
Newton was the first to realize that all objects have _____________.
What is gravity?
A ____ is made up of ice, rocks, and gas.
What is a comet?
The __________ is the third layer of the atmosphere.
What is mesosphere?
Less than ____ of Earth's water is lakes and rivers.
What is 1%?
At noon, the sun is at its _______ point in the sky.
What is highest?
It might be round and big, it's the _____.
What is the full moon?
An _______ is a small, solid object that orbits the Sun.
What is an asteroid?
__________ is the second to last gas in the atmosphere.
What is methane?
Water particles move through the water cycle at _______ speeds.
What is different.
Shadows are made because of ________ objects blocking sunlight.
What is opaque?
NASA calls space junk _____.
What is Orbital Debris?
_____ is the process by which water escapes into the air from plants.
What is transpiration?
Water vapor is about _________ of the atmosphere.
What is 1-4%?
_________ in the water you drink today might have once flowed down the Mississippi River.
What is water particles?
_____ in the air are one factor that affects the amount of solar energy transferred to Earth.
What is pollutants?
The Greek philosopher __________ (500 BCE-428 BCE) was the first known person to suggest that the stars were other suns.
Who is Anaxagoras?
A ______ is a change in atomic structure that creates vast amounts of heat and light energy, as in the reactions that occur in the Sun.
What is Thermonuclear Reaction?