2.  Geographers use 2- and
3- dimensional tools to
learn about the earth.
 Geographers use
computer assisted
technology to study the
earth.

3. Globes Help Geographers study the world.
What are some advantages/disadvantages of
using globes?

4.  Globes provide a
proportional view of the
earth as it travels
through space.
 They are not easily
portable.
 You can only see half of
it at a time.

5.  Cartographers make maps, which are two-
dimensional representations of earth.
 What are some advantages and disadvantages
of maps?

6.  Easily portable
 Can be drawn to any scale needed
 Distortion occurs as maps are flattened
 A map projection is a way of drawing the
earth’s surface that reduces distortion
caused by presenting a round earth on flat
paper.

7.  Size of scale is determined by detail.
 Large scale maps are needed to show many
details. LARGE SCALE = LARGE DETAIL
 Small scale maps are needed when fewer
details are shown. SMALL SCALE = SMALL
DETAIL!!!!!
 What are some examples of places that
would need a large scale?
 What are some examples of places that
would need a small scale?

10.  1. General Reference
- (Political, Physical, Topographic)
 2. Thematic
 3. Navigational

11.  General Reference
maps are used for
people to acquire
information.
 Physical maps help you
see the types of
landforms and bodies
of water in a specific
area.
 P. 20 in book

12.  Political maps show
features on the earth’s
surface that humans
created.
 Cities, states,
provinces, territories,
or countries may be on
a political map.
 P. 21

13. Topographic maps are types of general
reference maps. They show natural and
man-made features on earth.

14.  Thematic maps focus on specific types of
information. (ex: population density,
vegetation, weather maps, resources,
qualitative)

20.  Use colors, symbols, dots, or lines to
help you see a pattern.

22.  Surveying
• Surveyors observe,
measure, record what
they see in a specific
area.
They use remote sensing
(gathering data from a
distance) to do this.
• Remote sensing includes:
- aerial photography
- satellite imaging

23.  Geographers use Landsat
and Geostationary
Operational Environment
Satellite (GOES) to
gather geographic data.
 Landsat is a series of
satellites that can scan
the entire planet in 16
days.
 GOES orbits the earth
and gathers atmospheric
information used for
forecasting weather.

25.  GIS stores geographic
info in a database.
 Geographers use GIS
to solve problems.
 GIS provides maps,
aerial photographs,
satellite images, and
other data.
 Can you think of an
example of a GIS?

27.  Originally developed for
military reasons.
 Uses 24 satellites to
show exact location on
earth.
 Who might use GPS?