Fossils and Geologic Time Review

Fossils and Geologic Time Review

What is a Fossil?

A fossil is any preserved remains or traces of ancient organisms

Multiple Choice

Fossils show evidence of

• how life and environment have stayed stable over time

• how climate and weather have stayed stable over time

• how the environment has changed and life stayed stable

• how the environment and life has changed over time

Multiple Select

Which of these are types of fossils?

• Carbon Film

• Mold

• Cast

• Petrified

Types of Fossils

Watch the video to learn about the different types of fossils

Multiple Choice

Fossils such as _______ provide evidence of past life and environmental conditions

• shells and footprints

• rocks and sand

• hieroglyphics

• rare minerals

Multiple Select

Scientists use these evidences to prove organisms change over time. Choose all that apply

• similarities in DNA

• similarities in early development

• similarities in the number of mates

• similarities in body structure

Multiple Choice

Some scientists believe that life on Earth began 4.5 billion years ago. What do they base this belief on?

• the distance from the Earth to the sun

• the fossil record

• the time it takes to orbit the Earth

• the thickness of the mantle

Multiple Choice

Scientist sometimes find trace fossils, that are not the organism itself, but something left behind by the organism. Coprolites are trace fossils. They are preserved feces, or dung, from animals. What part of the organism's life can this tell scientists about?

• age

• sleeping habits

• diet

• body coverings

Multiple Choice

As the body plan of the fish progressed, the first sharks appeared during the Silurian Period. The skeletons of these ancient fish are hard to find because their skeletons are composed of

• calcium

• muscle

• bone

• cartilage

How do we date fossils?

https://www.brainpop.com/science/earthsystem/relativedating/

Multiple Choice

Scientists can estimate the ages of rock if they contain certain ___________.

• sediments

• index fossils

• minerals

• carbons

Poll

What layer is the youngest?

• A

• B

• C

• D

Multiple Choice

In what era did the first land plants appear?

• Cenozoic

• Silurian

• Mesozoic

• Paleozoic

Land plants first appeared...

during the Paleozoic Era

These were mainly mosses and simple ferns (i.e. liverwort)

Multiple Choice

What is the importance of studying fossils?

• to provide information about how life and environmental conditions may have changed

• to provide information about current life forms and current environmental conditions

• to provide information about how previous life forms would exist in current environmental conditions

• to provide information about how current life forms would exist in previous environmental conditions

Making connections for Next Week