Natural Resources and Changes to Earth's Surface

Question 1

deposition

Answer 1

the action of depositing something such as sand, snow, or mud

Question 2

erosion

Answer 2

the wearing away and transportaion of the earth’s surface by wind or water

Question 3

glacier

Answer 3

a very large sheet or block of slow moving ice

Question 4

landform

Answer 4

a natural feature of the Earth’s surface such as a mountain or valley

Question 5

sediment

Answer 5

material deposited by water, wind, or ice such as rock or sand

Question 6

soil

Answer 6

the thin layer of material covering the Earth’s surface

Question 7

weathering

Answer 7

the breaking down or dissolving of rocks and minerals on Earth’s surface

Question 8

canyon

Answer 8

a deep valley with steep sides often carved from the earth by a river V shape

Question 9

delta

Answer 9

a piece of land shaped like a triangle that is formed when a river splits into smaller rivers before it flows into an ocean

Question 10

sand dune

Answer 10

a sand hill created by the wind

Question 11

U-shaped valley

Answer 11

valley formed by glaciers

Question 12

V-shaped valley

Answer 12

valey formed by rivers

Question 13

coal

Answer 13

a black, hard substance found within the earth that is used as a fuel

Question 14

conservation

Answer 14

the protection of animals, plants, and natural resources

Question 15

natural gas

Answer 15

a gas that is taken from under the ground and used as fue

Question 16

nonrenewable resources

Answer 16

a resource, that when it is used up, will not exist again during a human lifetime

Question 17

petroleum / oil

Answer 17

a kind of oil that comes from below the ground and that is the source of gasoline and other products

Question 18

recycle

Answer 18

to reuse a resource by breaking it down and using it to make a new product

Question 19

renewable resources

Answer 19

a resource that can be replaced within a human lifetime

Question 20

cementation

Answer 20

The process in which minerals precipitate into pore spaces between sediment grains and bind sediments together to form rock.

Question 21

clay

Answer 21

a fine-grained soil material that is soft when it is wet and hard when it is dry

Question 22

compaction

Answer 22

The process by which sediments are pressed together under their own weight.

Question 23

components of soil

Answer 23

Soil is a material composed of five ingredients — minerals, soil organic matter, living organisms, gas, and water

Question 24

decompose

Answer 24

decay, rot, breaking down into

Question 25

gravel

Answer 25

the upper layer of soil in which plants have most of their roots

Question 26

hummus

Answer 26

a material that is made up of partly decayed leaves and plants

Question 27

loam

Answer 27

a rich, easily crumbled soil made up of silt, sand, clay, and organic matter

Question 28

nutrient

Answer 28

a substance that plants, animals, and people need to live and grow

Question 29

particle

Answer 29

The individual pieces of soil. Classified as sand, silt or clay.

Question 30

properties of soil

Answer 30

color, texture, structure, and acidity of soil

Question 31

retain

Answer 31

to hold or keep

Question 32

sedimentary rock

Answer 32

formed from sediment grains deposited by water, wind or ice

Question 33

silt

Answer 33

the sand, soil, and mud that is carried by flowing water and sinks to the bottom of a river or pond

Question 34

texture

Answer 34

the way that something feels when you touch it

Question 35

topsoil

Answer 35

the upper layer of soil in which plants have most of their roots