The Water Cycle/Fresh Water Resources
Earth's Atmosphere/Wind/Temperature
The Sun
The Structure of the Solar System
Gravity and Orbit
100
To ___________ means to "dirty" the water.
pollute
100
What do we call the layers of air that surround the Earth?
atmosphere
100
What is our sun?
a star
100
What do we call an object that circles around a planet? (We have one.)
a moon
100
What do we call the pull between any two objects? (It is what keeps you from floating off into space.)
gravity
200
_______________ is when gas changes into a liquid? (This happens on the outside of an iced drink glass during the summer.)
Condensation
200
What do we call the closest layer of gas to the Earth?
the troposphere
200
Which tool do we use to see distant objects in space?
a telescope
200
What is an object in space that makes its own light and heat?
a star
200
What do we call the path one object takes around another object? (For example, the moon's path around the Earth)
orbit
300
_______________ is when water falls from the air. (Please give the scientific name, not rain.)
precipitation
300
The amount of air pressing onto an area is called what?
air pressure
300
What makes up 99.8% of the mass of our ENITRE solar system?
the sun
300
A ________ is a mass of rock, frozen gases, ice, and dust.
comet
300
What do we call the rise and fall of the ocean's surface? Sometimes these create small pools of water on the beaches that are full of sea life.
a tide
400
The continuous movement of water between Earth's surface and the sky as it changes form is called what?
the water cycle
400
_________ is the average weather conditions of a place.
Climate
400
What do we call the burst of energy from the sun that interrupt radios, cell phone, and TVs?
a solar flare
400
What is our solar system made up of?
A sun and the eight planets and their moons that move around it.
400
What causes tides?
The pull of gravity between the Earth and the moon.
500
The area of land in which water drains into a river is called what?
a watershed
500
A _________ is an ongoing movement of ocean water.
current
500
What do we call the rocks that orbit around the sun?
an asteroid
500
Which planet in our solar system is the largest?
Jupiter
500
What two factors keep the planets in orbit around the sun?
gravity and inertia
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