Changes to Earth's Surface
Sedimentary Rocks
Fossils
Formation of Fossil Fuels
Extra Questions
100
What is erosion?
The movement of sediments from one location to another.
100
What are small particles of rock?
sediments
100
What are the remains of traces of past life, often found in sedimentary rock called?
What are fossils?
100
What is oil formed from?
decayed remains of marine animals and fish
100
What are the three main types of fossil fuels?
coal, oil, and natural gas
200
Canyons are formed by what? How long do they take to form? Is it slow or fast?
Rivers eroding the land. It takes deep canyons hundreds of thousands of years to form. It happens really slowly.
200
What is the type of rocks fossils are formed in?
sedimentary rocks
200
Give a specific example of something that can become a fossil.
Bones, shells, teeth, etc. Never rocks!
200
What ancient ecosystems is coal formed from?
Prehistoric flooded swamps and forests.
200
What is required in the formation of coal or oil?
heat and pressure
300
Weathering does what to rocks, mountains and land?
Breaks it down into smaller pieces called sediments.
300
What is pressing tightly together?
compaction
300
Are the oldest fossils found in the top or bottom layers of sedimentary rocks?
The bottom layer.
300
How long ago were coal, oil, and natural gas deposits formed?
more than 300 million years ago
300
Why are fossil fuels called "fossil fuels"?
They form from the remains of ancient organisms.
400
What are the three processes that gradually change Earth's surface?
weathering, erosion, and deposition
400
What is binding things together?
cementation
400

Name two examples of Sedimentary Rock

Sandstone, Limestone, Shale, Conglomerate

400
What is coal formed from?
decayed remains of plants
400

What are the three things we focused on that change the Earth?

Wind, Water, and Ice.

500

Name at least two examples of weathering, erosion, or deposition landforms

Sand Dunes, Deltas, Canyons, U-Shaped Valleys

500
What do sedimentary rocks look like?
Layers. (Think about the Grand Canyon.)
500
If a scientist finds a fish bone fossil in the middle of the desert, what can the scientist infer?
That the desert must have been covered by water millions of years ago.
500
Where are fossil fuels usually found?
Between layers of sedimentary rocks.
500

What are the five processes required for Sedimentary Rocks?

weathering, erosion, deposition, compaction, cementation

M
e
n
u