The spinning of a body on its axis is called this.
Rotation
100
These are the four seasons experienced on Earth.
Winter, spring, summer, fall (autumn)
100
During this phase, the moon is not visible at all from Earth.
New Moon
100
Name the two types of eclipses that can be seen from Earth.
Solar and Lunar
100
Name the two types of tides.
Spring and neap
200
The movement of one body in space around another.
Revolution
200
Earth is tilted on its axis by this number of degrees.
23.5
200
During this lunar phase, the moon appears fully lit.
Full Moon
200
During this type of eclipse Earth is between the moon and the sun.
Lunar Eclipse
200
During a full moon or a new moon, this type of tide is happening.
Spring
300
We call the moon's revolution around Earth this.
A month
300
When the northern and southern hemisphere receive the same amount of sunlight on a particular day, one of these is happening.
Equinox
300
To decrease gradually in size. The apparent illuminated part of the moon is becoming smaller
Waning
300
The darkest part of a shadow.
The lighter part of a shadow that surrounds the dark part.
1.umbra
2.penumbra
300
What causes Earth's tides?
The gravitational pull or force of the moon
400
Earth completing one rotation is called this.
A day
400
When the southern hemisphere is tilted toward the sun, the northern hemisphere is experiencing this.
Winter
400
To increase gradually in size. The illuminated part of the moon appears to become larger.
Waxing
400
During this type of eclipse the sun's light is blocked by the moon.
Solar Eclipse
400
When the sun, Earth and moon form a 90 degree angle, this type of tide happens.
Neap
500
Explain why we add a "leap day" every four years.
Earth's revolution around the sun actually takes 365 1/4 days. If we did not add the extra day every four years, eventually (a few hundred years) our calendars, including when we observe equinoxes, soltices and seasons, would not match the weather patterns on Earth.
500
Why do areas near the equator have very little variation in temperature throughout the year?
These areas are not affected by Earth's tilt as much. As a result, they receive more direct sunlight on a more consistent basis.
500
Beginning with the new moon, name the eight phases of the moon, in order, as seen from Earth.
Using the terms umbra and penumbra, explain the difference between partial and total solar eclipses.
During a solar eclipse, the area on Earth within the moon's umbra experiences a total eclipse. The area outside the umbra, but within the penumbra experiences a partial eclipse.
500
What measurable characteristic (on Earth) defines a spring tide and a neap tide
Spring tides are characterized by a maximum tidal range and neap tides are characterized by a minimum tidal range.