pg 27
Earth's spheres
Biosphere
(life)
Atmosphere
(air)
Lithosphere
(crust)
Hydrosphere
(water)
Geosphere
(Earth)
pg 29
Earth's Spheres II
ESRT pg 1
=
pg 31
ESRT pg
Atmosphere
Selected properties of Earth's Atmosphere
pg 33
Latitude and Longitude I
Latitude
- measured NORTH and SOUTH from the Equator
- Latitude is based on the
Longitude
- measured EAST and WEST from the
Prime Meridian
** All locations in the USA have a NORTH
latitude and WEST longitude**
pg 35
Latitude and Longitude pt II
Longitude is based on Earth's Rotation
360 / 24 hrs = 15 /hr
*the basis for time zones
Same longitude = same local time
pg 37
Topographic Map Basics
purpose:
- to show the elevation of every point on the map
who:
- military, miners, police, farmers, hikers,
construction, landscapers
when:
- hiking, biking, building a house, landscaping
pg 39
Stream Flow
- contour lines form a "V" and point uphill (upstream)
when they cross a river or stream
**rivers and streams flow downhill
pg 41
Hachured Lines
hachured
lines
- show areas of depression
(decreasing elevation)
RULES
- the first hachured line has the same elevation
as the previous contour line
pg 43
steps to
drawing a
profile
Profiles
1. place a piece of paper between the points
2. mark where every contour line touches the edge
of the paper
3. determine the elevation of each mark and mark
it on the paper
4. place the paper on the graph and mark the
elevations of each contour line
5. connect the points with a smooth line
Gradient
pg 45
change in field value (elevation)
distance
gradient
*how steep or gentle a slope
contour lines =
steep
gentle
E: gradient = change in elevation
distance
S: g = 1632 ft- 282 ft
120 mi
A: g = 1350 ft = 11.25 ft/mi
120 mi