Glaciers Vocab

4. the remains of ancient animals and plants that trace or impression of living things from past geologic ages or the trace of their activity
6. a certain fossil known to exist in a particular time and place that maybe used to determine the age of rock and other fossils
9. when the species no longer has living members in existence
10. the circulation of water throughout the hydrosphere from Earth's surface to the atmosphere and back
11. and comparison of fossil in different rocks layers to determine how old a rock or fossil is
14. the average weather in a location over 30 years or more

1. the eroded settlement that is disordered as glaciers Retreat and expand
2. a period of time characterized by specific weather patterns and by the length of day and night
3. like all of the fossils that have been found which scientists use to understand Earth's history
5. is an attractive force between all matter
7. the gravitational force exerted on an object by a planet or moon
8. the conditions of the atmosphere temperature humidity wind speed and precipitation at a particular place and time
12. A cylinder of ice drilled out of glaciers that contains layers of snow dust volcanic gas atmospheric gases and microbes from past time periods
13. a following mass of ice and snow that forms are mountain tops and near the North and South Poles