Earth Science Chapter 1

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Class Notes 9/20/10 and 9/21/10

Transcript of Earth Science Chapter 1

Notebook Set Up Notebook Set Up

Name and class written on the inside Name and class written on the inside of front cover. of front cover.

Chapter 1 :Chapter 1 :Mapping Earth’s Mapping Earth’s

SurfaceSurfacePage 44Page 44

Date Date

9/20/2010 written in the upper right 9/20/2010 written in the upper right corner of the page. corner of the page.

9/20/109/20/10Warm Up Warm Up

Copy Questions down into your Copy Questions down into your NOTEBOOK and then answer the NOTEBOOK and then answer the questions in your notebook.questions in your notebook.

What kinds of information can you What kinds of information can you get from a map? get from a map?

When have you used a map before? When have you used a map before?

Understanding MapsUnderstanding Maps

1. 1. Maps show where things and Maps show where things and places are in relation to each other.places are in relation to each other. A single map shows a snapshot of A single map shows a snapshot of

things at a given time. things at a given time. A series of maps can show change over A series of maps can show change over

time.time.

Grid SystemGrid System

Mapmakers created a grid system to Mapmakers created a grid system to make it easy to find locations on make it easy to find locations on Earth. Earth.

This grid system uses lines of This grid system uses lines of Longitude and Latitude. Longitude and Latitude.

LatitudeLatitude Latitude Latitude is the is the

distance in degrees distance in degrees north or southnorth or south of the of the equatorequator..

a. a. Earth’s equator is a Earth’s equator is a line of latitude.line of latitude.

b. b. Measured from 0° Measured from 0° to 90° North, and to 90° North, and from 0° to 90° South.from 0° to 90° South.

LongitudeLongitude

Lines of longitude Lines of longitude run from the north run from the north pole to the south pole to the south pole.pole.

Longitude Longitude is the is the distance in distance in degrees degrees east east (0 to (0 to 180)180) or west or west (0 to (0 to 180) of the 180) of the prime prime meridianmeridian..

Helpful Hint Helpful Hint

LatLatitude lines look itude lines look like the steps of a like the steps of a laddladder. er.

It’s aIt’s a long long long long way from pole to way from pole to pole, so we call pole, so we call thosethose Long Longitudes. itudes.

9/21/10 Warm Up

• Above are two different views of the same house.

•Give 3 examples of times you would want to use a MAP VIEW and 3 examples of times you would want to use a PROFILE VIEW.

Brain Break Brain Break

Q. Why was longitude boiling mad?Q. Why was longitude boiling mad?

Brain Break Brain Break

Q. Why was longitude boiling mad?Q. Why was longitude boiling mad?A. Because it was 360 degrees.A. Because it was 360 degrees.

180° West 180° West

+ 180° East+ 180° East

360° 360°

Minutes and SecondsMinutes and Seconds

4. 4. Latitude and longitude are Latitude and longitude are divided into 60 smaller units called divided into 60 smaller units called minutes ( ‘ ).minutes ( ‘ ).

5. 5. Minutes are also divided into 60 Minutes are also divided into 60 smaller units called seconds ( “ ).smaller units called seconds ( “ ).

Plotting Locations Plotting Locations

Latitude then LongitudeLatitude then Longitude Example: 38°N, 121°W Example: 38°N, 121°W

Use minutes and seconds for an Use minutes and seconds for an exact location: exact location: 38°34’33” by 121°29’29” 38°34’33” by 121°29’29”

Practice Practice

Map Legends (Key)

List symbols used on maps

Map Scales

Tells the relationship between a distance on the map and the actual distance.

Practice

Create an accurate map of your desk using the scale:

1 inch = 1 foot (12 inches)

Copy this chart to help you plan: Actual Desk (Feet)

Mapped Desk (Inches)

Width

Length

Homework Homework

HOMEWORK IS TO BE DONE IN HOMEWORK IS TO BE DONE IN YOUR NOTEBOOKYOUR NOTEBOOK

Lesson Review page 52: # 1 – 8