Earth's Characteristics/Measurements
A. What is earth's shape?
B. Is the equatorial diameter greater than the polar diameter?
a. An oblate Spherioid - a spherelike but not perfectly spherical body. Earth is flatter at the poles and bulgier at the equator due to earth's rotation
b.Yes
Name some rules for latitude lines?
1. Equator is the 0 degree line of latitude, the poles form the 90 degree points of latitudes
2. Latitude lines form concentric circles where the Equator is the circle with the LARGEST DIAMETER and the Poles form points (Lines of latitude do not touch)
3. All points in the US are in the north
What is the Earth's only permanent natural satellite?
the Moon
What is a lunar eclipse?
It occurs during a FULL MOON PHASE when earth is between the sun and the moon. The earth cases a shadow on the moon.
Latitudes are also called ______
Longitudes are also called ______
1. Parellels
2. Meridians
Tides are cyclic which means...
They repeat and are predictable
True or false?
The altitude of Polaris is equal to the latitude in the Northern Hemisphere
True
How many time zones are there and how wide are they?
There are 24 time zones each 15 degrees longitude wide. 1 hr difference in time between each time zone
What is a lunar eclipse?
What is a solar eclipse?
Earth between sun and moon, full moon phase
Moon between sun and earth, new moon phase
What happens when water becomes ICE?
What forms a coordinate?
The intersection point between Latitude and Longitude lines form a coordinate grid which plots your position on Earth's surface.
Why doesn't a blue moon occur in February?
Not enough days in february
Why does the continental crust float on top of oceanic crust?
Because of its density
Cities located on the same meridian (longitude) must have the same...
a. altitude
b. latitude
c. length of daylight
d. solar time
d. solar time