1. Sixth Grade: Unit 6
Eclipses

2. What are eclipses?
Although the Sun, our moon, and the Earth itself are revolving around each other we are usually not revolving in the same plane (all lined up)
But occasionally we do line up in a straight line.
When this happens, an eclipse occurs

3. What are eclipses?
When the shadow of one celestial body falls on another an eclipse occurs.
A solar eclipse happens when the moon is between the Earth and the sun
Solar= EMS
MONDAY!!!
A lunar eclipse happens when the Earth comes between the moon and sun.
Lunar = MES

4. Solar Eclipses= New Moon
Can only occur during the new moon phase
New moon = no moon
The moon passes directly between the Sun and Earth, blocking the light from the Sun
The shadow of the Moon falls on a small portion of Earth’s surface and very few people are able to see it.
But on Monday, we are part of that very small number of people!

5. SOLAR ECLIPSE August 21, 2017 North America.
Upcoming Solar Eclipses
August 21, 2017
North America.
We are in the path, and will experience about 97% totality
February 15, 2018
South America
Next one in this area:
May 11, 2078

6. Lunar Eclipses = Full Moon
Can be seen by anyone on the night-time side of the Earth where the Moon’s not hidden by clouds.
A total eclipse of the moon can only happen when the moon is full, because that's when the moon is exactly opposite from the sun in the sky.
The moon is full about once a month, but eclipses happen less often because sometimes the moon is too high or too low for the Earth's shadow to fall on it. .

7. Lunar Eclipses .
Usually lunar eclipses (eclipses of the moon) happen two to four times a year.
Sometimes they are full eclipses, and sometimes only part of the moon is eclipsed.
When there's an eclipse of the moon, anyone on the night side of Earth can see it.

8. LUNAR ECLIPSE Upcoming Lunar Eclipse
Types of Lunar Eclipses
LUNAR ECLIPSE
Upcoming Lunar Eclipse
The next lunar eclipse is a total on January 31, 2018
Europe, Asia, Australia, Northern Canada 
Another lunar eclipse will take place on July 27/28, 2018
Europe, Asia, Africa 
January 20/21, 2019
N. America, S. America
We should have a good view here! 

9. Blood-Red Lunar Eclipse!
During a lunar eclipse, you’ll see the Earth’s shadow creeping across the moon’s face.
The shadow will appear dark, like a bite taken out of a cookie, until the shadow completely covers the moon.
Then, during the breathtaking moments of totality, the shadow on the moon’s face often suddenly changes.
Instead of dark, it appears red.
Why?

10. Blood Red Lunar Eclipse!
The reason stems from the very air we breathe.
If the Earth had no air, then Earth’s shadow on the moon during a lunar eclipse would appear black.
The presence of Earth’s air means that, during a lunar eclipse, sunlight can filter through Earth’s atmosphere onto the shadow on the moon.
This filtered sunlight makes the moon appear red during a total eclipse.

11. How They are Different A solar eclipse can only occur at new moon
Lunar eclipse
Solar eclipse
A lunar eclipse can only occur at full moon and
In a lunar eclipse, the total phase can last for a maximum of 1 hour and 40 minutes
A lunar eclipse occurs when the Earth passes between the Sun and the Moon.
A solar eclipse can only occur at new moon
The maximum time of a solar eclipse is 7 minutes 40 seconds.
A solar eclipse occurs when the Moon passes between the Earth and the Sun

12. What they both have in common
You can experience partial and total eclipses.
Occur a few times each year.
Can only occur when the Sun, the Moon, and Earth are lined up perfectly.
Occur in lunar/solar pairs!
Caused by the revolution of the Moon.

13. Safety Whys
A solar eclipse can blind you: even the tiniest sliver of a crescent sun peeking out from behind the moon emits enough light to scorch your eyes.
The risk of sunlight damage to your eyes is higher during a solar eclipse.
This is because the sunlight isn’t as bright and our instinct to look away may not be present, yet the light being emitted from the sun is just as powerful as on a sunny day
You probably won’t notice you damaged your eyes until the next morning.
The cells in your eyes get overloaded, but they’re actually still able to function for a little while, but overnight while you’re asleep, the cells start lose their function, and then they even start to die 
Most patients with eclipse blindness are legally blind when they visit an eye doctor, and it could take the typical person six to 12 months before knowing whether or not they will remain legally blind or recover. There aren’t really any treatment options and doctors treat the impairment like any other case of visual impairment.

14. Safety Hows
You should not look directly at the sun without protection except during the brief totality time.
Total solar eclipse will begin at 2:36 p.m. and last for 2 minutes and 40 seconds.
That 2 minutes and 40 seconds marks the brief totality time in which you are safe to look at the sun without any official protection gear.

15. Safety Hows
The only safe way to view the partially eclipsed (or uneclipsed) sun directly is to wear eclipse glasses or hand-held solar viewers.
NO BINOCULARS, TELESCOPES, SUNGLASSES
We have approved eclipse glasses for all students who will be present during the eclipse on Monday
Do not use if the film on your glasses is damaged
Wear for the entirety of the eclipse

16. Plan for Monday
At the end of 5th hour ( 3rd period), all students will be dismissed back to HR
After checking in with their HR teacher, those who choose to view inside will be dismissed to their assigned area at that time.
Once everyone is settled in, distribution of glasses to those who are viewing outside will start, and safety procedures will be reviewed.
Students who are viewing outside will start to be dismissed to their assigned area around 2:00
You may bring a towel to sit on outside
Totality at 2:36ish
At 3:00 we will return to HR and dismiss to ___ periods
Dismissal at 4:30
You may check out at 11:30 and still be counted present, however, the glasses are for those who are at FMS during the eclipse