5.9D Fossils as Evidence of Past 2

Ancient organisms were more likely to become a fossil if they –

• were soft-bodied organisms, like worms and jellyfish

• contained hard body parts, like bones and teeth

• were eaten by scavengers

• were broken down by decomposers

Tags

NGSS.MS-LS4-1

A ______ fossil forms when an organism dies, is buried in sediment, decays leaving a mold behind, and the space fills with sediments. This results in a copy of the organism.

• mold

• trace

• cast

• preserved

Rock layer D contains many ancient Trilobite fossils which are extinct marine arthropods. Which type of environment most likely existed when this rock layer was formed?

• Desert

• Lake

• Forest

• Ocean

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4

Approximately how old are the oldest fossils that have been discovered?

• 300 years old

• 30,000 years old

• 3 million years old

• 3 billion years old

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4

Below is a picture of an insect trapped in amber, which is fossilized tree resin. What do scientists call this finding?

• Preserved remains

• Living fossil

• Petrified remains

• Trace fossil

Tags

NGSS.MS-LS4-1

Which of the following is mostly likely to become a fossil? A

• worm

• An insect

• A leaf

• An animal tooth

Tags

NGSS.MS-LS4-1

Ammonite fossils, an ancient marine mollusk, have been found in the tallest mountain range in the world, the Himalayas in Nepal. These fossils are evidence that –

• fossils can be carried to new locations

• the rocks that became the Himalayas were once at the bottom of an ocean

• the rocks that became the Himalayas were once part of a desert ecosystem.

• All of the above

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Using methods like measuring radiation, and studying rock layers and fossil records, scientists have been able to determine that the Earth is approximately ______ billion years old.

• 1

• 10

• 4.5

• 5.5

Tags

NGSS.MS-ESS1-4

Which rock layer in the picture below is the third oldest rock layer?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4

______ fossils are an outline of an organism left on a rock. They are formed when soft-bodied organism are squeezed between rock layers and a carbon residue is left behind.

• Cast

• Carbon film

• Petrified

• Carbon dating