Earth Moves
Seasons
Gravity and Motion
Phases
Tides
100
The two major ways Earth moves through space
What is rotation and revolution
100
The reason earth has seasons.
What is the tilt of the axis
100
A push or pull
What is force?
100
The changing positions of the ____, ____, and ___ cause the phases of the moon eclipses, and tides
What is moon, earth, and sun
100
The rise and fall of the ocean water that occurs every 12.5 hours.
What is tides?
200
The movement of one object around another
What is revolution
200
June 21 and December 21
What is a solstice.
200
A force that attracts all objects toward each other.
What is gravity?
200
When the moon's shadow hits Earth or Earth's shadow hits the moon, an ______ occurs
What is eclipse
200
When the earth, the sun, and the moon are in a straight line (top)
What is spring tide?
300
The path earth follows
What is orbit
300
Halfway mark between the solstices
What is equinoxes.
300
The amount of matter in an object
What is mass?
300
The very darkest part of the moon's shadow
What is umbra?
300
When the earth, the sun, and the moon are in a right angle to the sun (bottom)
What is neap tide?
400
a system of organizing time that defines the beginning, length, and division of a year.
What is a calendar.
400
Two factors combined to keep Earth in orbit around the sun and the moon in orbit around the Earth
What is inertia and gravity?
400
The force of gravity on an object
What is weight?
400
The larger part of the shadow?
What is penumbra?
400
Occur mainly because of the differences in the force of gravity between the moon and different parts of the earth
What is Tides
500
a full day added to the calendar every 4 years (February 29)
What is leap year.
500
The different shapes of the moon you see from Earth
What is phases?
500
The tendency of an object to resist a change in motion
What is inertia?
500
Occurs at a full moon when Earth is directly between the moon and the sun
What is lunar eclipse?
500
If there was no ______, inertia would cause the moon to travel in a straight line
What is gravity?