science chapter 1
The latitude at the equator is?
0 degrees
what is the time change from one time zone to another?
1 hour
The width of a time zone is?
15 degrees longitude.
How many degrees east longitude and how many degrees west longitude?
180 degrees and 180 degrees
the maximum longitude is half the distance around Earth, or?
180 degrees east or west.
how many time zones does Earth have?
24 time zones
Earth is a sphere, which can be divided into how many degrees?
360 degrees
Each degree of latitude or longitude is divided into? which is further divided into?
60 minutes, 60 seconds
the North pole is located at ?
90 degrees north latitude (90 N)
The maximum latitude is one-fourth of he distance around Earth, or?
90 degrees north or south.
the South Pole is located at?
90 degrees south latitude (90 S)
which circle is the largest parallel circle?
Equator
what is used to find locations on Earth's surface?
Imaginary grid system
to describe a location, which do you state first longitude or latitude?
Latitude
map legend
a key that lists all the symbols used on the map- so you can interpret the symbols. It also explains what each symbol means.
profile view
are drawn in cross sections, this view shows a vertical slice through the ground, as though you were looking at Earth's interior form the side. You use these views when study cross sections, or models of the inner structures of Earth.
map scale
determines how large or how small a map might be.
map view or plan view
drawn as if you were looking down on an area from above Earth's surface.
Profile view
is a drawing that shows an object as though you were looking at it from the side
map
is a model of Earth.
conical projections
is formed by placing a light at the center of a globe and projecting the grid pattern on the globe onto a cone wrapped around the globe.
Cylindrical Projections
is formed by placing a light at the center of a globe and projecting the grid pattern on the globe onto a cylinder wrapped around the globe.
time zone
is the area on Earth's surface between two meridians where people use the same time.
Longitude
is the distance in degrees east or west of the prime meridian.
latitude
is the distance in degrees north or south of the equator
map scale
is the relationship between a distance on the map and the actual distance on the ground.
When you cross the International Date Line from West to East. What happens?
it becomes one day later
When you cross the International Date Line from East to West. What happens?
it becomes the day before in the west.
Which lines form complete Parallel circles?
latitude lines
what two features does a map have to help you read and understand the map?
map legend and map scale
latitude
mapmakers also drew lines eat to west around Earth.
longitude
mapmakers started the grid system with a line that circled Earth and passed through the North Pole and the South Pole.
what is the reference or starting point for time zones?
prime meridian
a scale can be written in words, as a?
ratio or a scale bar( fraction)
map
shows the surface of Earth on a flat surface
prime meridian
the 180 degree meridian combine to divide Earth into east and west halves, or hemispheres.
Equator
the center line that divides Earth into the northern hemisphere and the southern hemisphere.
conical projestions
the continents are represented accurately only because the other areas, such as the oceans,are distorted or cut away.
what happens when you cross the International Date Line?
the day changes
International Date Line
the line of longitude 180 degrees east or west of the prime meridian
Equator
the reference line halfway between the North and South Poles
prime meridian
the reference line that passes through Greenwich, England
Cylindrical projections
these maps are accurate in showing shapes near the equator. shapes near the poles look much larger than they actually are.
grid system
this system uses two sets of imaginary lines that encircle Earth. The two sets of lines are called latitude and longitude. The intersection of a line of latitude and a line of longitude can pinpoint a location on a map or a globe.
why were time zones created?
to make travel, communication, and doing business easier for everyone.
