EARTH

1. L.O: REVIEW EARTH’S
SHAPE, LATITUDE and
LONGITUDE

2. The true shape of Earth is an
oblate sphere.
The earth is slightly flat at the poles
and bulging at the equator.

3. The true shape is an oblate
sphere, but from space pictures it
looks like a perfect sphere.

4. POLARIS the NORTH star is a star
that is ONLY seen in the northern
hemisphere.

5. POLARIS IS DIRECTLY OVER THE NORTH
POLE..

6. ALL THE STARS APPEAR TO REVOLVE
AROUND POLARIS AT A VELOCITY 15 PER
HOUR.

7. THE TWO POINTER STARS ON THE BIG
DIPPER POINT TO POLARIS ON THE
END OF THE LITTLE DIPPER.

8. In the northern hemisphere, POLARIS’
altitude ALWAYS equals your latitude.

9. WHAT IS THIS OBSERVER’S LATITUDE?

10. 52 DEGREES NORTH

11. AS your latitude INCREASES, the
altitude of Polaris ALSO INCREASES.

12. the CHANGE IN THE altitude of Polaris
is evidence that Earth is round.

13. At the equator (zero degrees
latitude), Polar is at zero altitude.

14. At the north pole (90 degrees latitude)
Polaris’ altitude is also 90 degrees.

15. What is one latitude if Polaris is at 45
degrees?

16. One’s latitude is also 45 degrees N

17. On the regents, I will have to
determine the latitude and
longitudes of CITIES in NEW YORK
STATE and on other parts of EARTH.

18. FINDING THE LATITUDES OF NEW YORK
STATES CITIES IS EASY. I CAN USE THE MAP
ON PAGE 3 OF THE ESRT.
• LATITUDES IN NEW
YORK STATE ARE
BETWEEN 41 N AND
45N.
• LONGITUDES IN NEW
YORK STATE ARE
BETWEEN 72W AND 79
W.

19. ON THE REGENTS, I WILL HAVE TO
FIND THE LATITUDE AND
LONGITUDE OF PLACES ON EARTH

20. THE IMPORTANT LATITUDES
THE EQUATOR LATITUDE IS ZERO.
NORTH POLE 90 N
SOUTH POLE 90 S.

21. LONGITUDE
• EACH TIME ZONE IS 15 DEGREES WIDE.
• EX: LOCATIONS WITH A 3 HOUR DIFFERENCE
IN TIME ARE: 3 X 15 = 45 DEGREES APART.

22. Open your green workbook to page
204. complete typical latitude and
longitude questions.