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planet earth quiz
earth science
| Question | Answer |
|---|---|
| what are earth's three spheres? | lithosphere, atmosphere, and hydrosphere |
| what is the densest of earth's spheres? | the lithosphere |
| what is the Atmosphere? | a layer of gases surrounding the earth above the liquid water and rocks |
| what are the gases that make up most of the atmosphere? | nitrogen and oxygen |
| what is the hydrosphere? | a layer of water that lies between the atmosphere and rocky material |
| what makes up the hydrosphere? | oceans, lakes, rivers, icecaps, etc... |
| what elements make up water? | hydrogen and oxygen (h2o) |
| what shape is the earth | the earth is almost a perfect sphere (oblate spheroid) |
| due to earth's rotation... | it is slightly bulged at the equator and slightly flattened at the poles |
| the altitude of polaris... | increases/decreases depending on your latitude |
| polaris is the | north star |
| polaris remains | in a fixed position above the north pole |
| what is the equator? | an imaginary horizontal line circling the earth halfway between the north and south poles |
| the equator is the reference line for | latitude (0 degrees latitude) |
| what is the prime meridian? | an imaginary vertical line from the north pole to the south pole that passes through greenwich, england |
| the prime meridian is the reference line for | longitude (0 degrees longitude) |
| what is the international date line? | 180 degrees east or west of the prime meridian |
| the international date line is on the direct opposite side of the earth from the | prime meridian |
| the prime meridian and the international date line connect at the poles (north and south) and form a circle that | cuts the earth in half vertically (eastern and western hemispheres) |
| what is latitude? | the angular distance north or south of the equator measured from the center of the earth |
| the lines of latitude lines run east to west but measure | north to south |
| what is longitude? | the angular distance east or west of the prime meridian measures from the center of the earth |
| the lines of longitude run north to south but measure | east to west |
| the world rotates 360 degrees in 24 hours, so how many degrees does it spin in 1 hour? | 15 degrees |
| the world has _________ time zones | 24 |
| each time zone is _________ degrees apart | 15 |
| what is the logical starting point for time zones? | greenwich, england |
| the world rotates | counterclockwise (west to east) |
| time zones to the east are _________ of the time zones to the west | ahead |
Created by:
keira 9th
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