Earth, Moon, and Sun
The act of the earth spinning once every 24 hours is called:_____________
rotation
New Moon
During what moon phase can we see a lunar eclipse?
Full Moon
When we are receiving direct sunlight, what season is it?
Summer
The dark part of a shadow is called the what?
Umbra
The pathway the earth travels around the sun is called the:_____________
orbit
First Quarter
During what moon phase can we see a solar eclipse?
New Moon
When we are receiving indirect sunlight, what season is it?
Winter
The lighter part of a shadow is called the what?
Penumbra
When the moon is at its closest point to the earth, this is called________.
perigee
What phase comes after waxing crescent?
First Quarter
Draw a model of how the earth, moon, and sun are lined up during a solar eclipse
See models
Explain: what causes the seasons?
The tilt of the earth on its axis.
How many degrees is the earth tilted on its axis?
23.5 degrees
When the moon is at its farthest point from the earth, this is called__________.
apogee
What is the phase right before Last Quarter?
Waning Gibbous
Draw a model of how the earth, moon, and sun are lined up during a lunar eclipse
See models
At the beginning of Spring and Fall, we have a day with equal amounts of sunshine and darkness. This is called the what?
Equinox
What is the earth's axis always pointed to?
Polaris, the North Star
Explain why some models of the earth, moon, and sun system might not be completely accurate.
Answers vary
Explain why the lunar phases do not fall on the same days every month.
There are 8 phases and 29.5 days in the cycle, so they change every month.
Explain why we do not see an eclipse every month. Be specific.
The moon's orbit is tilted 5 degrees.
What is the longest day of the year in the Northern Hemisphere?
The Summer Solstice
If we were out in space looking down at the earth and moon system from above, would we see the phases as we do from earth? Explain.
No, we would see that half of the moon is always lit up.