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weathering and erosion guided notes - ______ animals break rock apart. …

Question

weathering and erosion guided notes

  • ______ animals break rock apart.

human activity

  • digging, blasting, building ______, and mining.

big idea: mechanical weathering increases the rate of ______ weathering by increasing surface area.
chemical weathering

  • chemical weathering changes the ______ of rock.
  • minerals change into ______ minerals.
  • many minerals are ______ at earth’s surface.

agents of chemical weathering

  • ______ is the most important agent of chemical weathering.

carbon dioxide (co₂)

  • combines with water to form ______ acid.
  • acid rain ______ chemical weathering.

oxygen

  • causes ______.
  • iron reacts with oxygen to form ______.

chemical weathering and living things

  • plant roots absorb ______ from rock.
  • plants and bacteria release ______ dioxide during respiration.
  • living things can ______ chemical weathering.

factors that affect weathering rates
rock and mineral type

  • ______ rocks (like granite) weather slowly.
  • ______ weathers quickly because it dissolves in weak acids.

Explanation:

Brief Explanations

This is a fill - in - the - blank worksheet about weathering and erosion, which is related to the study of the Earth's surface processes. In the field of Natural Science, Geography (specifically geomorphology which is a sub - field of Geography) deals with such topics as weathering and erosion. The following are the answers based on the knowledge of weathering and erosion:

  1. For the first blank (animals break rock apart), the answer is "Burrowing" as burrowing animals can break rocks apart.
  2. For the blank under Human Activity (Digging, blasting, building ____, and mining), the answer is "roads" (other infrastructure like buildings or tunnels could also be possible, but roads are a common human activity related to rock disturbance).
  3. For the BIG IDEA blank (Mechanical weathering increases the rate of ____ weathering by increasing surface area), the answer is "chemical" as mechanical weathering exposes more surface area for chemical reactions to occur, thus increasing chemical weathering rate.
  4. For the first Chemical Weathering blank (Chemical weathering changes the ____ of rock), the answer is "composition". Chemical weathering alters the chemical makeup of rocks.
  5. For the second Chemical Weathering blank (Minerals change into ____ minerals), the answer is "new" as chemical weathering transforms existing minerals into different (new) ones.
  6. For the third Chemical Weathering blank (Many minerals are ____ at Earth’s surface), the answer is "unstable" as many minerals that are stable deep within the Earth are unstable at the surface due to different environmental conditions.
  7. For the Agents of Chemical Weathering blank (____ is the most important agent of chemical weathering), the answer is "Water". Water is crucial in many chemical weathering processes like hydrolysis, oxidation (when combined with oxygen), and dissolution.
  8. For the Carbon Dioxide (CO₂) first blank (Combines with water to form ____ acid), the answer is "carbonic" as \(CO_2 + H_2O=H_2CO_3\) (carbonic acid).
  9. For the Carbon Dioxide (CO₂) second blank (Acid rain ____ chemical weathering), the answer is "increases" as acid rain provides more acidic substances to react with rocks, thus increasing chemical weathering.
  10. For the Oxygen first blank (Causes ____), the answer is "oxidation". Oxygen is involved in oxidation reactions during chemical weathering.
  11. For the Oxygen second blank (Iron reacts with oxygen to form ____), the answer is "rust" (or iron oxide, \(Fe_2O_3\) is the chemical formula for rust).
  12. For the Chemical Weathering and Living Things first blank (Plant roots absorb ____ from rock), the answer is "nutrients" as plant roots can absorb nutrients from rocks through chemical processes like acid secretion.
  13. For the Chemical Weathering and Living Things second blank (Plants and bacteria release ____ dioxide during respiration), the answer is "carbon" (carbon dioxide, \(CO_2\)).
  14. For the Chemical Weathering and Living Things third blank (Living things can ____ chemical weathering), the answer is "increase" as living things like plants (through root growth and acid secretion) and bacteria (through releasing substances) can speed up chemical weathering.
  15. For the Rock and Mineral Type first blank (____ rocks (like granite) weather slowly), the answer is "Hard" (or "Intrusive igneous" as granite is an intrusive igneous rock and is hard and resistant to weathering).
  16. For the Rock and Mineral Type second blank (____ weathers quickly because it dissolves in weak acids), the answer is "Limestone" (limestone is mainly composed of calciu…

Answer:

  1. Burrowing
  2. roads
  3. chemical
  4. composition
  5. new
  6. unstable
  7. Water
  8. carbonic
  9. increases
  10. oxidation
  11. rust
  12. nutrients
  13. carbon
  14. increase
  15. Hard (or Intrusive igneous)
  16. Limestone