How do fossils form and what do they show?

Which of the following can become a fossil?

• A plant's leaves

• A large animal

• An insect trapped in sap

• All of the above

Tags

NGSS.MS-LS4-1

A _________ is an example of a trace fossil.

• fossilized tooth

• fossilized footprint

• piece of amber

• petrified tree

Almost all fossils are found in ________

• • amber.

• groundwater.

• sedimentary rocks.

• dirt that has been packed down.

Tags

NGSS.MS-ESS2-3

What must happen for a fossil to form?

• it is in deep water

• it is kept dry

• it is buried quickly

• it is left unburied

An insect in amber is an example of _____.

• a trace fossil

• a fossil record

• an exposed fossil

• a whole body fossil

How do bones change when they become fossils?

• bone material changes shape

• bone material is replaced by rock

• bone becomes stronger and harder

• bones become lighter and weaker

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What is a fossil record?

• a record of an organism left behind.

• the history of how life on Earth has changed

• the rock left behind after a bone is fossilized

• evidence that animals lived a long time ago

Tags

NGSS.MS-LS4-1

How are fossils revealed?

• • water washes dirt away

  
  

• people dig up soil

• wind weathers away rock

• all of the above

Finding a trilobite is evidence that an ancient environment was part of _____.

• a forest

• an ocean

• a mountain

• a canyon

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS2-3

What do the petrified trees in Petrified Forest National Park suggest about the ancient environment?

• there was more rain

• there was a desert

• it was near a body of water

• there was no dry land

Tags

NGSS.MS-LS4-1