1. Earth’s Dimensions and Navigation (Chapter 2)
Vocabulary Review
Remember to wait for the vocabulary word to pop up! Can you guess it before it comes up?
PB2009

2. Angular measurement East and West of the Equator
Longitude
Angular measurement East and West of the Equator
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3. Angular measurement North and South of the Equator
Latitude
Angular measurement North and South of the Equator
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4. Zero degrees longitude
Prime Meridian
Zero degrees longitude

5. The standard global time
Greenwich Mean Time
The standard global time

6. Lithosphere Solid rock layer

7. A very thin film of all of the water that surrounds the Earth
Prefix Alert!!
Hydro means water
Hydrosphere
A very thin film of all of the water that surrounds the Earth

8. Outer shell of gases that surrounds the Earth
Atmosphere
Outer shell of gases that surrounds the Earth

9. The layer of the atmosphere where weather occurs
Troposphere
The layer of the atmosphere where weather occurs

10. A layer of gas approximately 10-30 miles up in our atmosphere
Stratosphere
A layer of gas approximately miles up in our atmosphere

11. Oblate Slightly flattened

12. The End