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Apologia module 6
Apologia science module 6 terms and questions
| Question | Answer |
|---|---|
| Catastrophism | The view that most of the earth’s geological features are the result of large-scale catastrophes such as floods, volcanic eruptions, ect |
| Uniformitarianism | The view that most of the earth’s geological features are the result of slow, gradual processes that have been at work for millions or even billions of years |
| Humus | The decayed remains of once-living creatures |
| Minerals | Inorganic crystalline substances found naturally in the earth |
| Weathering | The process by which rocks are broken down by the forces of nature |
| Erosion | The process by which sediments and rock fragments are carried away by wind or rain |
| Unconformity | A surface of erosion that separates one layer of rock from another |
| Which hypothesis (uniformitarianism or catastrophism) requires that the earth be billions of years old? | The uniformitarianism hypothesis |
| Which agent is responsible for laying down most of the sedimentary rock that we see today? | Most of it has been laid down by water |
| What happens during the process of chemical weathering? | The composition of the rock changes |
| What happens during the process of physical weathering? | The physical appearance of the rock changes; there is no change in the rock's composition |
| Where do a large part of the sediments carried by a river go? | Many sediments carried by a river are deposited in the river's delta |
| What causes an underground cavern to form? | They are formed by erosion caused by groundwater |
| What is the difference between a stalactite and a stalagmite? | Stalactites form on the ceiling of a cavern, while stalagmites form on the floor of a cavern |
| How are stalactites and stalagmites formed? | They are formed when groundwater seeps in through the ceiling of a cavern. As the drop falls to the floor of the cavern, it might deposit sediments on the ceiling or floor. As those sediments pile up, stalactites and stalagmites are formed |
| Name the four kinds of unconformities. | Angular uncomformities, nonconformities, disconformities,and paraconformities |
| What process forms an intrusion? | When magma from underneath the sedimentary rock gets injected into the cracks and fissures of the sedimentary rock |
| Name the three basic rock types. | Igneous, metamorphic, and sedimentary |
Created by:
JRae
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