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Earth Science Unit 2
Measuring Earth
| Question | Answer |
|---|---|
| latitude | |
| longitude | |
| equator | |
| prime meridian | |
| Isolines | |
| contour lines | |
| topographic maps | |
| elevation | |
| natural features | |
| contour interval | |
| gentle slope | |
| steep slope | |
| How do we find latitude? | The altitude (angle) of Polaris is equal to your latitude. |
| How do we know a hill is getting steeper on a topographic map? | The lines are closer together. |
| What are time zones based on? | the Earth's rotation of 15 degrees per hour |
| Each time zone | covers 15 degrees of longitude |
| Gradient (slope) | |
| Benchmark | |
| Depression contours | |
| Contour lines | never cross |
| Contour lines | form a v when crossing a stream |
| Topographic profile | |
| This determines the type of landscape | elevation and bedrock type |
| water flows | downhill. It flows from a higher location to a lower location. |
| The head of a stream | is where it starts. |
| Contour map | accurately shows the shape and changing elevations of land. |
| Elevation | the height of a location |
| sea level | are where all elevations are measured from. |
| zero | the number value of sea level |
| Hachures | shading marks on a depression contour. |
| head | where a stream starts |
| Gentle slope | contour lines that are far apart |
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