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# Earth Science Chapter 1

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

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

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### Transcript

• 1. Notebook Set Up
• Name and class written on the inside of front cover.
• 2. Chapter 1 : Mapping Earth’s Surface Page 44
• 3. Date
• 9/20/2010 written in the upper right corner of the page.
• 4. 9/20/10 Warm Up
• Copy Questions down into your NOTEBOOK and then answer the questions in your notebook.
• What kinds of information can you get from a map?
• When have you used a map before?
• 5. Understanding Maps
• 1. Maps show where things and places are in relation to each other.
• A single map shows a snapshot of things at a given time.
• A series of maps can show change over time.
• 6. Grid System
• Mapmakers created a grid system to make it easy to find locations on Earth.
• This grid system uses lines of Longitude and Latitude.
• 7. Latitude
• Latitude is the distance in degrees north or south of the equator .
• a. Earth’s equator is a line of latitude.
• b. Measured from 0° to 90° North, and from 0° to 90° South.
• 8. Longitude
• Lines of longitude run from the north pole to the south pole.
• Longitude is the distance in degrees east (0 to 180) or west (0 to 180) of the prime meridian .
• 9. Helpful Hint
• Lat itude lines look like the steps of a ladd er.
• It’s a long long way from pole to pole, so we call those Long itudes.
• 10. 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.
• 11. Brain Break
• Q. Why was longitude boiling mad?
• 12. Brain Break
• Q. Why was longitude boiling mad? A. Because it was 360 degrees.
• 180° West
• + 180° East
• 360°
• 13. Minutes and Seconds
• 4. Latitude and longitude are divided into 60 smaller units called minutes ( ‘ ).
• 5. Minutes are also divided into 60 smaller units called seconds ( “ ).
• 14. Plotting Locations
• Latitude then Longitude
• Example: 38°N, 121°W
• Use minutes and seconds for an exact location:
• 38°34’33” by 121°29’29”
• 15. Practice
• 16. Map Legends (Key)
• List symbols used on maps
• 17. Map Scales
• Tells the relationship between a distance on the map and the actual distance.
• 18. Practice
• Create an accurate map of your desk using the scale:
• 1 inch = 1 foot (12 inches)
• Copy this chart to help you plan:
Length Width Mapped Desk (Inches) Actual Desk (Feet)
• 19. Homework
• HOMEWORK IS TO BE DONE IN YOUR NOTEBOOK
• Lesson Review page 52: # 1 – 8