WRS Earths History Fossils 8.7.1, 8.7.3, 8.7.41

Scientists have found a frozen wooly mammoth in Siberia. It was frozen 38,000 years ago. What kind of fossil is this?

• Cast and Mold

• Preserved

• Carbon Film

• Trace

Dinosaur fossils are found in rock layers below those where saber tooth tiger fossils are found. What can we infer?

• Saber tooth tigers are older than dinosaurs.

• Saber tooth tigers evolved from dinosaurs

• Dinosaurs and saber tooth tigers lived in different geological eras.

• Dinosaurs ate sabertooth tigers.

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4

Scientists find a cave bear fossil. What is the best way to find the exact age of the fossil?

• Superposition

• Relative Dating

• Radiocarbon Dating

• Guessing

Scientists find a preserved fossil of a small furry mammal which they believe is an ancestor to dogs. What can they do to validate this claim?

• Compare analagous structures

• Compare homologous structures

• Examine the environment in which the fossil was found

• Absolute dating

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Most organisms that have ever lived are now extinct

• True

• False

Tags

NGSS.MS-LS4-1

A Scientist finds geologic ash between two sedimentary rock layers.

• This can be used as a geologic time marker

• This will cause the fossil to be mis-dated

• This indicates a mass extinction

• This is an unconformity

Tags

NGSS.MS-ESS1-4

Scientists can find the absolute age of a fossil by:

• Measuring the distance from the surface it was found

• Comparing stable and unstable atoms in the fossil

• Examining the surrounding fossils

• Performing a chemical analysis

Tags

NGSS.MS-ESS1-4

What are the geological time scale eras in order from oldest to youngest?

• Cenozoic, Mesozoic, Paleozoic

• Cenozoic, Paleozoic, Mesozoic

• Paleozoic, Mesozoic, Cenozoic

• Mesozoic, Paleozoic, Cenozoic

Tags

NGSS.MS-ESS1-4

Index fossils are the remains of plants and animals that lived for a limited period. Best index fossils are common, widely distributed, and easy to identify.

• This means index fossils can help with relative dating by helping to correlate rock strata.

• This means that they lost the fight to be the dominant species

• This means that there was a mass extinction

• This means that homologous structures can be found when comparing them to other organisms.

Scientists are studying three different areas. Based on the index fossils, which layers are the same age?

• A and R

• A and Z

• D and R

• C and Y

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4