Geology 1E: Rocks & Weathering

Label the pictures based on their likely relative age!

a

b

YOUNGER

OLDER

We have learned that​ (a)   is the process that ​ (b)   down rock and other substances at Earth's surface and ​ (c)   is the removal of rock particles by wind, ​ (d)   , ice, and gravity. These processes work continuously to wear down and ​ (e)   away the rocks at Earth's surface.

• weathering
• erosion
• breaks
• water
• carry
• chemical
• throw
• deposition

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

What do we call the principle that states:

THE SAME PROCESSES THAT OPERATE TODAY MUST HAVE OPERATED IN THE PAST

Tags

NGSS.MS-LS4-1

The two types of WEATHERING are...

• MECHANICAL

  &

  CHEMICAL

• MECHANICAL

  &

  GEOLOGICAL

• EDUCATIONAL

  &

  CHEMICAL

• STATISTICAL

  &

  CONTRACTUAL

• POLITICAL

  &

  COMICAL

Tags

NGSS.MS-ESS2-2

Match the following types of mechanical weathering with their definitions.

• Eroding material causes rocks to crack.

• PLANT

  GROWTH

• Breaking rocks by burrowing & tunneling.

• ANIMAL

  ACTIONS

• Wearing away of rocks with sand.

• PRESSURE

  RELEASE

• Prying apart rocks with growing roots.

• ABRASION

• Cracking rocks with expanding water.

• ICE WEDGING

  (Freezing & Thawing)

Tags

NGSS.MS-ESS2-2

As rocks get ​ (a)   eroded, the pressure on the outside of the rock is ​ (b)   . This causes the pressure inside of the rocks to ​ (c)   , which can cause ​ (d)   and cracking on the ​ (e)   of the rock!

• slowly
• reduced
• release
• flaking
• exterior
• quickly
• increased
• interior
• contain

Tags

NGSS.MS-ESS2-2

When water ​ (a)   in a crack in a rock, it ​ (b)   and increases the size of the crack. The process (called ice ​ (c)   ) can also ​ (d)   the size of cracks in sidewalks and can even cause ​ (e)   in streets.

• freezes
• expands
• widen
• potholes
• thaws
• shrinks
• wedging
• flaking
• improve

Tags

NGSS.MS-ESS2-2

Animals that ​ (a)   in the ground can ​ (b)   and break apart rocks in the ​ (c)   . These ​ (d)   include moles, gophers, prairie dogs, and even some ​ (e)   .

• burrow
• loosen
• soil
• insects
• animals
• rocks
• climb
• sky
• minerals

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Roots of trees and other ​ (a)   enter ​ (b)   in rocks. As roots ​ (c)   , they force the cracks ​ (d)   . Over time, the roots of even ​ (e)   plants can pry apart cracked rocks.

• plants
• cracks
• expand
• farther apart
• small
• animals
• shrink
• closer together
• dead

Tags

NGSS.MS-ESS2-2

Sand and other ​ (a)   that are carried by ​ (b)   , water, or ice can wear away exposed rock surfaces just like sandpaper wears away ​ (c)   . Rocks can get ​ (d)   in strange ways by ​ (e)   sand.

• particles
• wind
• wood
• shaped
• wind-driven
• torn
• folded
• rock
• water

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2