1. Good morning! Follow along with your worksheet to fill in the answers.
Weathering
Good morning! Follow along with your worksheet to fill in the answers.

2. What is the definition of weathering?
Process of disintegrating solid rock and producing loose debris

3. What are the two types of weathering?
CHEMICAL WEATHERING
&
PHYSICAL WEATHERING

4. Match each term with its proper definition
Chemical Weathering
Dissolution
Hydrolysis
Oxidation
Physical Weathering

5. Match each term with its proper definition
Chemical Weathering: C. decomposition of rocks and minerals as chemical reactions alter them into new minerals stable at Earth’s surface.
Dissolution: E. process where a mineral passes completely into solution.
Hydrolysis: A. chemical reaction where water and another substance both decompose into ions.
Oxidation: B. chemical combination of oxygen (in atmosph. or water) w/ 1 mineral to form a different mineral w/ higher oxidation state.
Physical Weathering: D. disintegration of rocks by physically breaking them apart.

6. Fill in the blank!! Amount of and influence weathering.
Humid/tropical climates produce weathering with
soil.
Deserts produce weathering with soil.
Polar climates produce weathering with
Feldspars weather to
Micas weather to
Quartz weathers to
Basalts weather to

7. Fill in the blank!! Amount of rainfall and temps influence weathering.
Humid/tropical climates produce chemical weathering with
thick soil.
Deserts produce physical weathering with thin soil.
Polar climates produce physical weathering with thin
soil.
Feldspars weather to clay
Micas weather to clay
Quartz weathers to quartz
Basalts weather to clays, iron oxides, Al oxides.

8. Fill in the blank!! Sandstones weather to Shale weathers to
Limestone weathers to
WEDNESDAY

9. Fill in the blank!! Sandstones weather to quartz
Shale weathers to clay
Limestone weathers to solution *limestones are the most soluble rocks
WEDNESDAY

10. True or False??
An increase in rainfall causes an increase in reactions.
A decrease in temperature causes an increase in reactions.
The A horizon of soil is dark grey to black and rich in organic matter.
The B horizon of soil is composed of the parent rock in various stages of weathering.
The C horizon of soil is composed of leached material from above.

11. True or False??
An increase in rainfall causes an increase in reactions. T
A decrease in temperature causes an increase in reactions. F
The A horizon of soil is dark grey to black and rich in organic matter. T
The B horizon of soil is composed of the parent rock in various stages of weathering. F
The C horizon of soil is composed of leached material from above. F

12. Crossword Across: 3. mineral matter+ organic matter + air + water
4. blanket of loose decayed rock debris and soil
Down:
1. result of freeze/thaw cycles occurring in pre-existing fractures (hint: include space between 2 words in puzzle)
2. result of confining pressures being released by erosion causing the rock body to expand/heave

13. Crossword Across: 3. mineral matter+ organic matter + air + water SOIL
4. blanket of loose decayed rock debris and soil
REGOLITH
Down:
1. result of freeze/thaw cycles occurring in pre-existing fractures
ICE WEDGING
2. result of confining pressures being released by erosion causing the rock body to expand/heave
SHEETING

14. What concept is occuring?

15. What concept is occuring?
SPHEROIDAL WEATHERING: occurs because edges and corners of joint block are easily decomposed

16. What concept is occuring?

17. What concept is occuring?
EXFOLIATION: rock weathers like layers of an onion

18. Fill in the boxes in image…

19. Fill in the boxes in image…
A horizon
B horizon
Regolith
C horizon
Unaltered bedrock

20. The End!