The Basics
Seasons
Eclipses
Moon Phases
Tides
100
A ________ is the motion of a body that travels around another body in space.
Revolution
100
Earth has seasons because...
Earth's axis is tilted causing some areas to receive different amounts of direct sunlight.
100
For a solar eclipse to occur, what would be the relative positions of the Earth, Sun, and Moon?
The moon will be in between the Earth and sun (New Moon).
100
How long does it take the moon to do a revolution? What about a rotation?
1 month
100
Tides are caused mainly by...
The moon and suns gravitational pull.
200
Spinning on an axis is called __________.
Rotation
200
What season occurs when the Earth's axis is tilted the farthest away from the sun?
Winter
200
For a lunar eclipse to occur, what would be the relative positons of the Earth, sun, and moon?
The Earth would be in between the sun and moon (Full Moon).
200
When the moon appears to be shrinking, it is called....
Waning
200
Why is the timing of the tides predictable?
We see the moon phases.
300
Earth's rotation takes _________; Earth's revolution takes ___________.
24 hours, 365 days
300
What imaginary line around the Earth divides it into the Northern and Southern hemispheres?
The equator
300
What type of eclipse would you see if the umbra passes over you?
A total eclipse.
300
What moon phase is this?
First Quarter
300
The cycle of tides takes how many hours to complete?
12 hours
400
We can see the moon because..
The moon reflects light from the sun.
400
On the diagram, what number represents the season of spring?
4
400
Which type of tide happens at a lunar and solar eclipse?
Spring Tide
400
What moon phase is this?
Waxing gibbous
400
What type of tides occur during the 1st and 3rd quarter moons?
Neap tides
500
___________ causes seasons. _________ causes day and night.
Earth's revolution, Earth's rotation
500
At which position in the diagram would the Northern Hemisphere receive the most hours of daylight?
Position D
500
What is the eclipse called when it looks like a cookie with a bite taken out?
Penumbral eclipse
500
What term describes the line that separates the illuminated and dark sides of the moon?
The terminator
500
This kind of tide, named for it happening in narrow canals, can cause a sudden high tide.
A tidal bore