Seasons
These days have equal hours of daylight and darkness.
Spring and Fall Equinox (March 21 and Sept 21)
What is the phase of the moon when we cannot see the moon?
New Moon
Which eclipse happens when the moon is in the Earth's shadow and the full moon, sun, and Earth are lined up directly?
Lunar Eclipse
What is the length of time it takes the Earth to revolve around the sun?
365 days or one year
The motion that the Earth does as it turns on its axis is called what?
Rotation
If the Earth had no tilt, this would be the year-round season in Minnesota.
Spring or Fall
What is the phase of the moon that is completely illuminated by the sun?
Full Moon
Which eclipse happens when the sun is blocked by the moon and the new moon, Earth, and sun line up?
What is the length of time it takes the Earth to rotate one time on its axis?
about 24 hours
What is the length of a lunar cycle?
29 days (one month)
In the Northern Hemisphere, this is the name of the shortest day of the year and the first day of winter.
Winter Solstice
What is the source of the moon's light?
Sun
What is the moon phase occurring during a solar eclipse?
New Moon
What is the length of time it takes the moon to orbit the Earth?
one month (29.5 days)
What is the reason that the sun appears to move across the sky?
rotation of the Earth
On June 21st (summer solstice), the most direct rays from the sun are concentrated at this "tropical" latitude.
Tropic of Cancer
What is the moon phase called when there is a curved white part showing on the right?
Waxing crescent
How many times have you traveled around the sun by the time you are 10 years old?
10
The motion the moon does around the Earth and the Earth does around the sun is called what?
Revolution
Earth's temperatures and hours of daylight stay the most constant at this latitude.
Equator
What is the reason for the different shapes of the moon?
Part of the moon gives off reflected light at different times of the month due to the angle of sunlight hitting it as it orbits the Earth
What is the reason that we don't have an eclipse during every new moon or full moon?
The moon's orbit is on a tilt so the sun, moon, and Earth only line up twice a year for an eclipse.
How many natural satellites does our Earth have?
One (our moon)
If a student observed the position of the sun above a building at noon in January and then compared the sun again at noon in March, the apparent height of the sun would do what?
It would move higher in the sky.