1. Topic: Earth’s Coordinate System

2. How do you find a position on Earth?

3. Latitude— Equator 0° South North 20°N 20°S 10°S 10°N

5. Highest Latitude is 90°N or 90°S Pole 90° 0° Equator

6. Longitude – 0°0° 20°W 10°W10°E20°E Prime Meridian WestEast

7. The Prime Meridian runs through Greenwich, England…

8. Countries along the Prime Meridian

9. What is the greatest longitude line you can have? _ What is it known as? _

10. You can find coordinates for anywhere on Earth.

11. N N E E W W S S Know your directions

12. Hemispheres Prime Meridian Equator North West South West North East South East 179°W00179°E 90 °N 0 90°S

13. -ºN, -ºW

14. Take out Best Friend Map of NYS page 3

15. -ºN, -ºW

16. Degrees, Minutes, Seconds 360 _______in a circle360 _______in a circle 1 degree is ________1 degree is ________ 1 minute is ________1 minute is ________ MUCH more accurate way to find a location on Earth

17. Symbols Degree Minute Second

18. 41°30’ 42° 40° 41° 43° = 42 °60’ 42°30’ 44° 44°30’ 45° 43°30’ 74°30’ 76°30’ 75°30’ 73°30’ 77°30’ 78°30’

19. 42º30’N, 74º30’W

20. 42° 43° 42°30’ 42°45’ 42°15’ Albany -°-’N, -°-’W

21. What about our location? 41° N 40°30’N 72°W72°15’W 40°45’N 73°30’W WHB 40°48’N, 72°36’W 73°45’W

22. Final Question: http://www.polleverywhere.com/multiple_c hoice_polls/LTU3NTYzNDI0/webhttp://www.polleverywhere.com/multiple_c hoice_polls/LTU3NTYzNDI0/web

23. Topic: Finding Your Way

24. Polaris is the North Star

25. Altitude: Angle above the horizon Meeting point of earth and sky Zenith: _________________

26. How to Find the North Star You can find the North Star by locating the two bowl stars of the Big Dipper. Follow those stars in a straight line to the first bright star you see. That is Polaris.

27. Equator Altitude of Polaris= - ° above horizon North Pole Latitude = - ° Altitude of Polaris = -° Equator Latitude = -° --- Horizon Direction to Polaris

28. Altitude of Polaris =________________ altitude horizon

29. Practice… Polaris 30°

30. What is the student’s latitude? 42° 48° Horizon Polaris Zenith

31. Review… Where are you ?

32. Review... Where are you?

33. *Summary* Latitude is the measure of how far North or South of the Equator a location is, measured in degreesLatitude is the measure of how far North or South of the Equator a location is, measured in degrees The Altitude of Polaris = __________________________The Altitude of Polaris = __________________________