1. ASTRONOMY

2. Movie Questions What is a meteorite?
Names _______ _________
Score _____
Movie Questions
What is a meteorite?
How many years did it take for the Earth to form?
What are the three layers of the Earth?
What is in the center of the Earth?
Why did the core of the Earth form?
What did Ernest Rutherford do to help date the planet?
What did salt crystals demonstrate for us in space?
What was found in Arizona that Patterson used to help date the Earth?
What age did Patterson give our planet?
What is an amphibolite?
What did the young scientist realize an amphibolite provides for our knowledge of our planet?
What does magnetite provide for scientists today?
What percent of our planet is made of water?
What did stromatolites provide for scientists?
Where did the building blocks of protein come from according to scientists and their findings?

3. The Universe Empty space, energy and matter (mainly hydrogen)
Stars: are spherical masses of hot gas producing energy
“light year” unit to measure distance in space
The distance light will travel in a year

4. The Solar System Sun is 4.6 billion yrs old! Planets:
The sun is the center of the solar system
The sun is the nearest star to the Earth
The sun produces energy by fusion of Hydrogen gas
The sun is the largest body in our solar system.
Planets:
Solid bodies
Gravity keeps planets in orbit

5. Other objects: Moons orbit planets
Asteroids: irregularly shaped rocks that orbit the Sun
Comets: masses of ice and rock embedded
Ice is composed of water, ammonia, methane and carbon dioxide
When a comet melts it leaves a light trail and rocks called:
Meteoroids: debris from the comet, rock fragments

6. The Moon Revolves around Earth in elliptical path
Revolution is 27 1/3rd days
Rotation is 27 1/3rd days
Why do we see the Moon?
The Sun light reflects off of it

7. 4 Phases of the Moon:
New moon (moon between the sun and Earth and we can’t see it)
1st Quarter (half the moon is lit)
Full moon (fully illuminated)
Last Quarter ( moon is half lit)

9. Lunar Eclipse: SEM Solar Eclipse: SME
Occurs when the Earth is between the Sun and Moon
the Earth’s shadow falls on Moon, and the Earth’s shadow darkens the moon.
Solar Eclipse: SME
Moon is between Earth and Sun
Moon’s shadow falls on Earth , the Sun is not visible

10. Closure Open to pg 121 review homework questions
Extended Response #s 32 and 35

11. Earth’s Movement Rotation: spinning on the axis
Earth rotates on the imaginary axis every 24hrs
Axis is tilted at 231/2 degree
The tilting on the axis causes the different seasons.
Rotates west to east / counter clockwise
Therefore the Sun, Moon and stars appear to rise in the east and set in the west

12. Earth’s Revolution Revolution: orbiting around the Sun
Orbits the Sun 365 ¼ days
Counterclockwise

13. Seasons Caused by the tilt of the Earth on its axis
Summer Solstice: June 21st (Northern Hemisphere tilted toward the Sun)
June 21st: Northern Hem receives the longest daylight and most direct Sunlight
Sun is Highest in the sky and casts the shortest shadows
North Pole has 24 hrs daylight while the South Pole has 24 hr darkness
When Northern Hemisphere is in Summer what is the Southern Hemisphere experiencing?

14. Sun light is most direct toward the Equator (Equinox hint)
Winter Solstice
December 21st
Southern Hemisphere tilted toward the Sun, while the Northern receives the least direct rays of the Sun and shortest daylight hours
Spring Equinox: March 21st
Fall Equinox: September 21st
Sun light is most direct toward the Equator (Equinox hint)
World wide there are 12 hrs of daylight and 12 hrs of night

15. Latitude and Longitude
Latitude: the angular distance north and south of the Equator
Ranges from 0 at the Equator to 90 to the N and S
Divides the Earth into Northern and Southern Hemispheres
Latitudes is based on the Pole Star, Polaris

16. Longitude: Angular distance east and west of the Prime Meridian
Ranges from 0 to 180 degrees of the Prime Meridian
Lines run N to S and meet at the Poles
Prime Meridian divides the Earth into Western and Eastern Hemispheres
Based on the Sun
Every 15 degrees is a one hour time difference

17. Earth’s Movement Rotation: spinning on the axis
Earth rotates on the imaginary axis _________
Axis is tilted ___________
The tilting on the axis causes _______________.
Rotates _____________________
Therefore the Sun, Moon and stars _____________________

18. Earth’s Revolution Revolution: _______________________________
Orbits the __________________
___________________

19. Seasons Caused by ________________________________
Summer Solstice: ______________
(_________________________tilted toward the Sun)
June 21st: Northern Hem receives ______________________________________________
Sun is Highest in the sky and _______________________
____________________________________while the South Pole has 24 hr darkness
When Northern Hemisphere is in Summer what is the Southern Hemisphere experiencing?

20. Sun light is most direct toward the Equator (Equinox hint)
Winter Solstice
_____________________
Southern Hemisphere tilted ______________, while the Northern receives the _____________________________________________
Spring Equinox: _________________
Fall Equinox: ___________________
Sun light is most direct toward the Equator (Equinox hint)
World wide there are 12 hrs of daylight and 12 hrs of night

21. Latitude and Longitude
Latitude: the angular distance ____________________________________________
Ranges from ____________________________________________
Divides the Earth into Northern and Southern Hemispheres
Latitudes are based on the Pole Star, Polaris

22. Longitude: Angular distance east and west of the Prime Meridian
Ranges from ________________________
Lines run ________________________
_______________divides the Earth into Western and Eastern Hemispheres
Based on the Sun
Every____________________________________________