A
During a total lunar eclipse, the Moon turns
red
A solar eclipse occurs during a (Moon phase):
New Moon
A lunar eclipse occurs during a (Moon phase):
Full Moon
During an eclipse, one object ______ a _______ on another.
casts a shadow
What precautions do you need for a lunar eclipse?
None
During a total solar eclipse, only the ___________ of the sun is visible.
corona
Name the order of objects in a solar eclipse.
Sun-Moon-Earth
Name the order of objects in a lunar eclipse.
Sun-Earth-Moon
Is it safe to view a partial solar eclipse with the naked eye?
No
How dark does it get dark during a partial solar eclipse?
Not very, unless it is nearly total.
When the Earth, Moon, and Sun are correctly aligned for an eclipse it is called:
Syzygy
Approximately how long is a Saros Cycle?
18 years
Define "umbra:"
The area of total (darkest) shadow.
Define "penumbra."
The area where some light is blocked.
Lunar eclipses last __________.
Solar eclipses last __________.
Hours; minutes
Why is the sky blue?
Blue light is scattered by our atmosphere.
You anxiously watch a solar eclipse countdown on your phone through your eclipse glasses as the moment approaches. Totality is 15 minutes away. Are you safe to look at the eclipse?
No. Proper eclipse glasses are so dark you will only be able to see the Sun through them. If you can see your phone, they are not safe.
An eclipse doesn't occur every Full/New Moon because:
the Moon's orbital path is tilted by ~5 degrees.
The Moon must be slightly ________ to the Earth for a total solar eclipse to occur.
closer
Eclipses occur because the Moon's ________ ______ from Earth is about the same as the Sun's.
Apparent size
Where was Chaldea?
Mesopotamia (The Fertile Crescent, modern Iraq)
The red/pink layer just barely visible at the base of the corona during a total solar eclipse is called the
chromosphere
Describe an annular solar eclipse, including when it occurs.
The Moon blocks out only the center of the Sun, creating a "Ring of Fire" effect. These occur when the Moon is slightly farther from Earth.
Your friend invites you to view an annular lunar eclipse at 4 pm tomorrow. What concerns do you have with this plan?
1. Lunar eclipses only occur at night.
2. There are no annular lunar eclipses because Earth’s shadow is much larger than the Moon.
About how thick is the Earth's atmosphere, relatively speaking?
Like a piece of paper wrapped around a large orange.