red
orange
blue
green
yellow
100
The darkest part of the moons shadow is called the __________
umbra
100
The force that pulls the moon toward Earth is called _______________.
What is gravity.
100
The sun and moon seem to move across the sky each day because of Earths ___________on its axis.
rotation.
100
The tendency for an object in motion to remain in motion is called __________.
inertia
100
Earth rotates on its axis every _________hours.
24
200
Any object that revolves around another object in space is called ___________.
satellite.
200
The times when day and night are of equal length are called _______________.
equinoxes
200
Earths rotation takes about ....
24 hours
200
Tides are caused by the force of __________ from the sun and moon acting on earth.
gravity
200
The tendency of a moving object to continue moving in a straight line or a stationary object to remain in place is called...
inertia
300
Galileo saw that much of the moons surface is covered with round pits called...
craters
300
All objects are attracted to each other by the force of....
gravity
300
Why does earth have seasons?
because its axis is tilted as it moves around the sun.
300
One complete revolution of Earth around the sun takes about...
one year
300
Two factors that combine to keep Earth and the moon in their orbits are...
gravity and inertia
400
What causes day and night?
earth rotation on its axis.
400
The strength of the force of gravity depends on (2 answers)...
mass and distance between them
400
How large is the moon compared to Earth?
about 1/4 the diameter.
400
The amount of the lighted side of the moon you can is the same during which two phases?
first quarter and third quarter.
400
What happens when a SOLAR eclipse occurs?
the moon must be directly between Earth and the sun.
500
Why do you never see the far side of the moon from Earth?
What is because the moon rotates once for each revolution around Earth.
500
In the southern hemisphere, the summer solstice occurs when the sun is...
farthest south
500
When does an equinox occur?
When neither end of Earths axis is tilted toward or away from the sun.
500
The amount of the sunlit side of the moon that faces the earth determines
the phase of the moon
500
When the north end of Earths axis is tilted toward the sun, North America will experience... (in terms of rays and day length)
What is more direct rays and longer days
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