Rocks and weathering

Question 1

process of breaking down rock into smaller pieces

Answer 1

weathering

Question 2

process of removing rock particles

Answer 2

erosion

Question 3

the theory that changes in Earth’s crust during geological history have resulted from the action of continuous and uniform processes

Answer 3

uniformitarianism

Question 4

who created the theory of uniformitarianism

Answer 4

Charles lyell

Question 5

process that physically breaks rocks into smaller pieces

Answer 5

mechanical weathering

Question 6

process of water entering into small spaces of rock freezing(expanding) creating a larger opening, then thawing(contracting) to allow more water to enter the space

Answer 6

freezing and thawing or ice wedging

Question 7

scratching, digging, burrowing all break rock down into smaller pieces

Answer 7

acts of animals

Question 8

type of plant which forces/wedges itself into cracks present on the rock and forces the crack to open

Answer 8

vascular

Question 9

scraping of rock surface by friction between rocks later moves by wind, glaciers, waves, gravity, and running water through erosion

Answer 9

abrasion

Question 10

process that breaks rocks through chemical changes

Answer 10

chemical weathering

Question 11

the process when iron in a rock reacts with oxygen to form rust

Answer 11

oxidation

Question 12

burning of fossil fuels produces carbon monoxide sulfur dioxide and nitrogen oxide; all of these combine with water to form weak acids

Answer 12

acid rain

Question 13

loose weathered material, found on earths surface, plants use to grow

Answer 13

soil

Question 14

solid layer of rock, usually beneath soil

Answer 14

bedrock

Question 15

dark in color, creates space for air and water, contains nutrients

Answer 15

humus

Question 16

smooth, silky, heavy, high water content

Answer 16

clay

Question 17

coarse, griny, light, low water content

Answer 17

sand (sandy)

Question 18

process of roots of plants entering spaces of rock and growing which expands the opening of the rock and breaks down the rock into smaller pieces

Answer 18

plant growth

Question 19

movement of tectonic plates pushes and pulls breaking rock into smaller pieces

Answer 19

release of pressure

Question 20

forces of weathering

Answer 20

heat and cold
oxygen and carbon dioxide
water and ice

Question 21

forces of erosion

Answer 21

running water, gravity, wind, ice

Question 22

types of mechanical weathering

Answer 22

abrasion, freezing and thawing, plant growth, release of pressure, acts of animals

Question 23

types of chemical weatheing

Answer 23

water, oxygen, living organisms, carbon dioxide, acid rain