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Dynamic Earth unit 1

science test

What causes granite to break down? Plant acid.
What results from rock abrasion? The rock will change size.
What happens to a rock when it is weathered? It will break down into small pieces.
What are the five causes of physical weathering? Pressure change, animal action, wind water and gravity, temp. change, and plant growth.
What are the four causes of chemical weathering? Oxidation, acid precipitation, acidic groundwater, and acid in living things
*Question six can not be displayed because of to many words* *Answer six can not be displayed because of to many words*
What are the two main causes of crack growth in rocks over time? Ice wedging and plant growth.
How does animal behavior cause physical weathering? Worms eat soil, animals dig burrows.
How does weathering affect a soft rock more than a hard rock? A soft rock will break easier.
What are the 3 causes of abrasion of a rock? Water, wind, and gravity.
what happens to a rock because of chemical weathering? It crumbles and breaks down.
Created by: zachary.wilken
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