1. 9/20/2017
Wednesday

2. Science Log Q1 Week 4 Wednesday, September 20:
Name some things you see in the sky, from closest to furthest away. Which can we study better? Why?

3. Planetary Science
Next several weeks you will be planetary scientists studying our planetary system and the universe
A planetary system is a star and all of the planets, moons, and other objects and materials that orbit that star.
Until very recently, we knew of only one planetary system in the universe. That system was our own solar system, named for the star that rules it---Sol, the Sun.
Even though many people suspected that most stars had planets orbiting them, we had no scientific evidence to support this suspicion.
Now, with new instruments and clever techniques, astronomers have found hundreds of distant planets orbiting other stars, and there are probably billions more planets yet to be discovered in our universe.

4. 2. Quick Write page 19
What is your cosmic address? Describe your location in the universe as accurately as possible, right down to this classroom.

5. 3. Scope of study
It’s not possible to investigate every potential planetary system.
The next several weeks will be spent investigating our solar system, and the objects and processes found there, as a model for other planetary systems.
We will peek out into the vast universe.

6. 4. Earth What is the closest star to Earth?
How many other planets are in our solar system?
What other objects are found in the solar system?
How big is Earth?

7. 4. Earth What is the closest star to Earth? The Sun, Sol
How many other planets are in our solar system?
Seven
What other objects are found in the solar system?
Moons, asteroids, meteoroids, comets, human-made objects, dust, gases.
How big is Earth?
12,756 km in diameter; 40,000 km in circumference
(write this last part on page 17)

8. Frame of reference Everything has to be somewhere in the universe.
The somewhere is called a location.
It is not possible to describe an object’s location without referring to its position relative to other objects.
The assemblage of objects, distances, and directions that you use to establish the location of something is called a frame of reference.
A frame of reference can be tiny, like the inside of a shoe box, or huge, like the state of Texas, deepening on what you are describing.
Just like yesterday , we went over the frame of reference of in the class, at the school, In the US, and on the Earth,

9. 6 mapping services (google earth) 100 m
What can you see in this photo?
Buildings, sidewalk, cars, basketball courts, people
Can you find where you are in this picture?
school
What name would you use to describe what you see in this image?
Silverland

10. 6 mapping services
Where are you, the observer, when you can see the school this way?
From above, in the sky, in an airplane

11. Point of view
The term used to describe the position from which an observation is made is called point of view. (Page 15)
Aerial photos such as this one, and tools such as maps, are prepared from a point of view directly above the area being studied, a point of view called a birds’-eye view.

12. What can be seen from 100 m? 1000 m? 10,000 m?
Focus Question 1.1 page 20
What can be seen from 100 m? m? 10,000 m?
The view of the terrain below changes as you fly higher and higher.

13. 9. Altitude and elevation
“Eye alt” stands for the altitude of the observer’s eye.
The building view of the school represents a view from a position just a little bit above Earth’s surface, at a low altitude.
Altitude is often confused with elevation,
Altitude normally means how far something is above Earth’s surface---the distance between the ground and an object or reference point above the ground.
Butterflies fly at low altitudes; jet airplanes fly at high altitudes.

14. 9. Altitude and elevation, page 15 and put in your index
Altitude normally means how far something is above Earth’s surface---the distance between the ground and an object or reference point above the ground.
Butterflies fly at low altitudes; jet airplanes fly at high altitudes.
Elevation is how far a location on Earth, such as a city or a mountain, is above sea level.
Elevation usually refers to a position on Earth’s surface.
The elevation at the top of Donner Summit is 2151 m. The elevation at the top of Pikes Peak in Colorado is 4301 m.

15. 9. Building view (100 m)
How would the view be different if you looked down from ten times higher ---an altitude of perhaps 1000 m?
Things would look much smaller, you can see more of the neighborhood
What can be seen in the building view and the neighborhood view?

16. Record your observations
NBS 1 Birds Eye View, page 21
There are 2 columns for observations, “Human-made structures” and “Natural structures.”
Record your observations for 100 m view (building),
1000 m view (neighborhood) and
10,000 m view (community)
Can you spot the school at 10 km
Use different color pencil to make observations

17. Can you see Water Trees Streets and highways Buildings of all kinds
Bridges
Golf course
Marsh
Beaches
Creeks
Boat docks
Compare Human made versus natural structures that you could identify in each view