Fossilization

A(n) ______ is the preserved or mineralized remains (teeth, bones, etc.) or imprint of an organism that lived long ago.

• Fossil

• index

• mineral

• trace

Tags

NGSS.MS-LS4-1

The fossil record gives us _____.

• accurate data on the number of life-forms that lived.

• accurate insight on how animals reproduced.

• information on past life and environments on Earth.

• information on past life and environments on Earth.

Tags

NGSS.MS-LS4-1

Fossils of a now extinct dinosaur have been near the east coast of South America and the west coast of Africa. The dinosaur could not swim or fly. What does this suggest about the continents of South America and Africa?

• The continents were once connected.

• A land bridge once connected the continents.

• The same type of animals evolved on both animals.

• Prehistoric man transported the dinosaur between the continents.

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

A fossil of a fern and other large-leafed plants were found in an area of Alaska. What does this suggest about this area in Alaska?

• A forest is now covered with snow.

• A farm was once located in the area.

• The area once had a warmer climate.

• Prehistoric man ate large-leafed plants.

Tags

NGSS.MS-LS4-1

A fossil must be:

naturally formed created by organic processes very old (at least 10,000 years)

Identify the correct letter for the choices that are all definitely fossils.

• Dinosaur tracks, Mammoth found in ice, Seashells found in limestone

• Imprints of rain drops, Trilobite shells, Mud cracks

• Egyptian Mummy, Ancient Pottery, Worm borings in sandstone

• Stone Age tools, Giant shark teeth, Seashells found on a beach

Tags

NGSS.MS-LS4-1

Which type of fossil can provide clues about the activities of ancient organisms?

• trace fossils

• remains preserved in amber

• carbon films

• molds and casts

Fossilized tracks of dinosaurs have been found when layers of rock have eroded and exposed the prints. When analyzed, what can these tracks tell us about the creature that made them?

• how many legs the animal had

• how long the animal lived

• what the animal’s height was

• what the animal ate

Using the choices below, identify the fossils formed by petrification.

• Black outline of a plant leaf

• Rock-like wood

• Mud-filled shape of a gastropod shell

• Insect in amber

This type of fossil forms when organisms are pressed between layers of soft mud that hardens and squeezes almost all the decaying organism leaving imprint material on rock.

• carbonized fossil

• petrified fossil

• petrified fossil

• petrified fossil

Preserved fossils form when entire organisms or parts of organisms are prevented from decaying by becoming trapped in _____.

• amber, rock, soil

• dirt, mud, water

• ice, tar, amber

• sand, rock, ice

Tags

NGSS.MS-LS4-1