Sedimentary Rocks and Fossils

You find shark tooth and fish fossils in an area that is now a forrest. What can you infer about the history of this place?

• The area was once a valley

• The area was once a desert

• The area was once covered in ice

• The area was once an ocean

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which is not true about fossils?

• fossils are only animals remains

• fossils show the history of Earth

• Fossils can be found in sedimentary rock layers

• fossils can be traces of organisms footprints and body structure

Tags

NGSS.MS-LS4-1

Cement together is part of making a sedimentary rock.  What is a synonym for "cement together".

• stuck together

• pull apart 

• squeezing together

• expanding

The diagram shows layers of sedimentary rock and examples of the fossils each layer contains, Which layer contains the oldest fossils? 

• Layer 2

• Layer 4

• Layer 1

• Layer 3

Tags

NGSS.MS-ESS1-4

From studying layers of sedimentary rock, what can we learn?

• ancient plants and animals

• how Earth has changed over time

• how volcanoes form

• both ancient plants and animals and how Earth changed over time

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

NGSS.MS-LS4-1

Which rock layer contains the newest fossils?

• F

• E

• B

• C

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Cementation

• Pressing or pushing against something

• The hardening together of sediments

• The remains of a plant or animal that lived long ago

Tags

NGSS.MS-ESS2-1

Sedimentary rocks are formed by

• Cooling of lava or magma

• Earthquakes releasing lava from the core

• Compacting and cementing

The weight of layers and layers of sediment causes?

• weathering

• erosion

• cementation

• compaction

Which process best describes compaction?

• particles are squeezed together under pressure

• particles glue together as minerals harden

• sediment settles