UNIT ONE: Toward Independence
Read and Attach:
Create margin notes on what you think is important.
Individually - Underline and highlight important information; in the margin provide a question or comment
foe each hihlighted piece.
Share with your partner what you thought and selected. Made changes if necessary.
Click HERE to download Introducing Latitude
Making and Using a Sextant
Make a sextant
Determine the latitude of various pounts in the room
Explain how latitude works.
Describe how a sextant is used to determine latitude.
What Is Latitude?
that run east to west
another name is "parallels"
north or south of the Equator
each degree of latitude is about 69 miles
total of 90º North and another
Facts About Latitude
Where does it begin?
an imaginary line that circles the Earth halfway between the North and South Poles
Where does it end?
the North and South Poles
What is its unit of measurement?
Degrees (minutes and seconds)
Important lines of latitude
The Equator = 0º
The Tropic of Cancer = 23 1/2ºN
The Tropic of Capricorn
= 23 1/2ºS
The Arctic Circle = 66 1/2ºN
The Antarctic Circle = 66 1/2ºS
The North Pole = 90ºN
The South Pole = 90ºS
Add the Following Items to Your Glossary (16-18)