1. Scientific Models: Introduction to Models of the Earth
Original Material by T. Brown 2005

2. Scientific Models:
Using other things to represent real things in the real world.
Does not need to look like the real thing being studied, just act like it in one important way.
No model is perfect.

3. Scientific Models: Uh Oh! We use Models to Study Things that are…
Too Big / Small
Too Expensive
Too Dangerous
Impractical / Unethical
Too Far Away
… to study directly.
Uh Oh!
Original Material by T. Brown 2005
Original Material by T. Brown 2005

4. Scientific Models: Examples: Globes / Maps Crater Lab
Animals for Medical Experiments
Computer Models
Weather
Climate
Medical
Chemistry
Original Material by T. Brown 2005

5. Define Map: Maps are Flat Pictures of the Earth.
All Maps are distorted, because you can’t make a sphere flat without stretching or shrinking it.
Original Material by T. Brown 2005

6. A sphere can not be made flat without distorting it..
Original Material by T. Brown 2005

7. A 3-D Spherical map of the Earth.
Globes:
A 3-D Spherical map of the Earth.
It is the most accurate.
Original Material by T. Brown 2005

8. This is an example of a study card.
Elevation: height of a point on Earth above or below sea level.
10 ft Above Sea Level
This is an example of a study card.
Original Material by T. Brown 2005

9. Practice: Find a flat dry area. Identify all symbols on a map.
Pick any contour line, and determine the elevation at that point.
Tell me which way streams and rivers flow.
Where is a steep cliff like area.
Where is a benchmark.
If the river floods 10 ft above normal, where would it spread out to?
Determine a route for a 2 mile road race ( or longer) in a certain area.
Find a hill.
Determine all the streams flowing into and out of a wetland.
Find open space to create a new park in Wethersfield.
Original Material by T. Brown 2005