Forces
breaks rock into small pieces
What is weathering
rock weathered away by a moving river
canyon/v shaped valley
for fossil fuels to form we need
dead organisms
one of the forces moves sand and gravel and deposits it somewhere else
What is water
these small pieces are often deposited in shallow seas or lakes.
What is sediments
when sediments are deposited at the mouth of the river
delta
how long does it take to form sedimentary rock
millions of years
another force picks up the rocks and moves it around to different places
What is wind
as layers pile up, pressure from above turns the ones on the bottom to
rock made of sediment is called
What is sedimentary rock
sedimentary rock is formed when sediments pile up and form
layers
WHO can move rock by a variety of ways ( hint: dump trucks)
Humans
_________ and pressure are necessary to form sedimentary rock.
Time
Tiny pieces of rocks are called ______
What is sediment
Sand, mud, and _____________ combine to form sedimentary rocks.
Sediments
_______ is the movement of weathered particles by water, wind, or ice.
What is erosion
When water in cracks of rocks freezes it expands causing the rock to break. This is called ______ _________
What is ice Wedging
The remains or traces of a plant or animal that lived long ago.
What is fossil
What are two necessities for the formation of sedimentary rock?
What is pressure, and time
Glaciers move ___________ across the surface of the earth.
What is slowly