Day and Night
This movement is the cause of day and night.
What is...Rotation?
This movement is the cause of the seasons.
What is...Revolution?
A lunar cycle lasts about this long.
What is...29.5 days?
This term describes the darkest part of a shadow, located in the middle of the shadow.
What is...umbra?
Do the northern and southern hemispheres experience the same seasons? Explain your answer.
Yes, but not at the same time of year. The tilt of the Earth causes them to experience the opposite seasons because of the type of sun rays each receives.
It takes this long to complete one rotation.
What is...24hrs?
It takes this long for Earth to complete one revolution around the Sun.
What is...365 days or one year?
This term means the light visible on the moon is increasing.
What is...Waxing?
This term describes the lighter part of a shadow, surounding on the middle of the shadow.
What is...penumbra?
Explain why it is always hot at the equator.
The area around the equator receives direct sun rays all year round.
SECRET SURPRISE QUESTION!!!!!!
Where does the Moon's light come from? Explain why we see different amounts of light on the Moon throughout the month.
The moon reflects the light from the Sun. Our viewing angle changes: As the Moon moves around Earth, we see different portions of that sunlit half.
Without this feature, Earth would experience the same season all year round.
What is...tilt axis?
What side of the moon is lit for the waxing phases and the waning phases?
Waxing - Right, Waning Left
This eclipse happens when the Earth's shadow covers the moon.
What is...lunar eclipse?
This is the direction that both the Earth and moon revolve.
What is...Counter-Clockwise?
Explain how the Earth's rotation causes day and night.
As the earth spins, the half of the earth that is facing the Sun is lit and the other half that is not facing the Sun is dark. This is day and night.
These are the two months in which solstices occur and the two months in which equinoxes occur.
What is...January and June for the solstice and March and September for equinox.
Compare how lit each moon phase is. (New, crescent, quarter, gibbous, full)
New - completely dark, Crescent - less than half, Quarter - half, Gibbous - more than half, Full - completely lit
This eclipse happens when the moon's shadow lands on Earth because the moon is blocking the sun.
What is...solar eclipse?
During which moon phase do solar and lunar eclipses occur?
Solar - New moon, Lunar - Full moon
Explain how the Earth’s tilted axis can affect day and night.
Because Earth is tilted as it orbits the sun, different hemispheres receive varying amounts of direct sunlight during different.
Summer = More Direct Sun = Longer Day and Shorter Night
Winter = Less Direct Sun = Shorter Day and longer Night
Spring/Fall = Equal day and night
Explain how the Earth's tilted axis causes the seasons.
The seasons occur based on how direct or indirect the sun rays hit the Earth. When a hemisphere is tilted toward the Sun, that hemisphere receive direct sun rays, causing a raise in temperature and the season Summer. When tilted away from the Sun, that hemisphere receives indirect sun rays and a drop in temp and the season Winter.
If a student observes a Full Moon on October 1st, on approximately what date should they expect to see the next New Moon?
When is...October 15 or 16?
Why don’t eclipses happen every month?
The moon's orbit is tilted.
How would the seasons be affected if there was no tilt of Earth’s axis?
There would be no seasonal changes.