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Rocks and Weathering
Questions to review
| Question | Answer |
|---|---|
| Some plants produce acids which result in _____________ weathering | Chemical |
| A rock that contains tiny, connected spaces through which water can move is said to be | Permeable |
| One agent of chemical weathering is ______________ , which combines with water to form carbonic acid. | Carbon Dioxide |
| The actions of animals most commonly can cause the type of weathering known as __________ __________. | mechanical weathering |
| Rapid chemical weathering can be caused by ____ ____, which is rain combined with pollutants. | acid rain |
| Some plants produce acids that result in ________ weathering. | chemical |
| The factors that determine the rate of weathering are the type of ____ and _______. | rock and climate |
| Acid rain causes very rapid ________ weathering. | Chemical |
| The most important agent of chemical weathering is ______. | water |
| After chemical weathering, the chemical makeup of the weathered rock is ______ _ _________ than the original rock. | weaker/different |
| Freezing and thawing are an example of __________ weathering. | mechanical |
| The movement of rock particles by ice, wind, water, or gravity is called _______. | erosion |
| The rate of chemical weathering is ______ in hot, wet climates than in cold, dry climates. | faster |
| The gas that causes rock containing iron to oxidize is __________ . | oxygen |
| The typing of weathering that occurs due to release of pressure is _____________ weathering. | mechanical |
| Plant root that force cracks in rocks farther apart are an agent of ___________ weathering. | Mechanical |
| What has a rock probably been chemically weathered by if it contains iron and becomes soft, crumbly, and a reddish brown color? | oxygen |
| What may the growth of plant roots and animal activity result in> | mechanical weathering |
| What is the agent of mechanical weathering called in which rock is worn away by the grinding action of other rocks? | abrasion |
| Granite will last a long time when it is used for building in what type of climate? | hot |
| What kind of weathering causes the mineral composition of rocks to change? | chemical weathering |
| What type of climate causes weathering to happen rapidly? | hot and wet |
| What is ice wedging? | water expands when it freezes and acts like a wedge |
| What is uniformitarianism? | the same process today as it was back then |
| Why does permeable rock weather easier? | It is full of air spaces that lets water seep through the holes. |
| What can scientists infer from the rounded shape of the Appalachian Mountains? | Chemical and Mechanical weathering weathered the mountains to make them round. |
| A marble statue is left exposed to weather. What agent of mechanical weathering probably will cause it to weather? | Water/ freezing and thawing |
| Describe how freezing and thawing of water causes mechanical weathering. | Cracks slowly expand until pieces of rocks fall off. |
| Explain how oxygen causes chemical weathering. | Because iron combines with oxygen to make oxidation. |
| Predict how the city's climate will effect the weathering of the statue, give reasons for your prediction. | The pollution will cause rain. Hot and cold climates = Ice wedging. fastest weathering occurs in hot and wet climates. |
Created by:
AbbyAnderson
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