Earth's Movement
How often does the Earth complete one revolution around the Sun?
Every 365.24 days.
True or False: There is only one cause of the seasons.
False. There are two.
True or False: The waning phases are when the moon appears to be getting smaller.
True.
True or False: During a solar eclipse the Sun is in a different position than it is during a lunar eclipse.
False. The Sun never moves.
The portion of the Moon reflecting light as seen on Earth.
Moon Phase
True or False: The tilt of the Earth changes.
False.
Why is the tilt of the Earth important in causing the seasons?
As the Earth revolves around the Sun, different parts of the Earth face toward or away from the Sun causing the different seasons.
During week one of the Moon cycle which side of the Moon is becoming more lit each night?
The Western or Right Side
Where is the Moon during a solar eclipse?
New Moon
Why does the Sun appear to move East to West across the sky?
The Earth's rotation moves from West to East.
What is true about the length of the day on a solstice.
It is either the shortest day or the longest day of the year.
What is the last phase before the cycle restarts at the New Moon?
Waning crescent
Where is the Moon during a Lunar Eclipse?
Behind the Earth.
During an eclipse, the lighter part of a shadow where light is partially blocked. This is the region where partial lunar and solar eclipses will occur.
The Penumbra
What force holds the Earth in place on its orbit?
The gravitational pull of the Sun.
What position is the Earth in on its orbit during the equinoxes.
The Earth's tilt is leaning along the orbit of the Earth.
What causes the Moon Phases?
The changing position of the Moon as seen from Earth.
Why don't solar or lunar eclipses happen every new moon or full moon phase, respectively?
Occurs when the Earth, the Moon, and the Sun are lined up and the Moon casts a shadow on the Earth’s surface. This can only occur during the New Moon Phase.
True or False: The rotation of the earth is one of the causes of the seasons.
False
At the March Equinox, which season is starting for the Southern Hemisphere.
Name all 8 phases in order, starting with the New Moon.
New moon, waxing crescent, first quarter, waxing gibbous, Full Moon, waning gibbous, third quarter, wanning crescent.
What is the difference between the Umbra and the Penumbra?
The Umbra is where all light is blocked by the shadow and the Penumbra is where some light still gets through.
Occurs when the Moon moves into Earth’s shadow. The Earth is in line between the Sun and the Moon. This can only occur during the Full Moon Phase.
Lunar Eclipse