Ancient Earth

Which best describes the fossil record?

• provides evidence that disputes the theory of evolution.

• provides evidence of a common ancestor to many species.

• cannot provide evidence of evolution

• inaccurate because scientists are not able to date fossils.

Tags

NGSS.MS-LS4-1

Which method is most likely to identify what happened before the start of the Paleozoic era?

• Scientists study fossils from the Jurassic era.

• Scientists explore the emergence of mammals and humans in the Cenozoic era

• Scientists observe index fossil records of the Mesozoic era.

• Scientists examine fossil evidence during the Precambrian time.

Tags

NGSS.MS-ESS1-4

Which information can be determined using half-life?

• percentage of rock that has aged

• number of radioactive particles left

• age of material

• type of particle released

Tags

NGSS.HS-PS1-8

According to the principle of original horizontality, what most likely happened to the rock layers in the background?

• They were deposited horizontally and the shifted by a geologic event.

• they were deposited vertically and then shifted by a geologic event.

• they were deposited at an angle

• they cracked at an angle

Which is the first step in the process during the formation of molded fossils?

• organisms are buried under sediment

• sediment hardens into rock

• sediment is eroded form rock

• organisms shape are preserved in rock

Which evidence suggests that several mass extinctions have occurred during Earth's history?

• Fossils provide information about water level and temperature.

• Fossils of the same species have been found on distant continents.

• many fossils demonstrate that organisms have changed over time.

• many fossils of organisms that are no longer living have been discovered.

Tags

NGSS.MS-LS4-1

Which measurement do geologists use to find the absolute age of once-living things?

• age of ancient rocks located near the remains

• total number of half-lives for the element potassium

• amount of decayed daughter elements

• amount of carbon-14 in the remains

Which type of fossil is formed by sediments and found in sedimentary rock?

• petrified wood

• carbon film of a leaf

• preserved insect

• mold of a fish

Tags

NGSS.MS-LS4-1

Which statement accurately describes the geologic features?

• C formed after E.

• F formed before the horizontal layer above was deposited

• D occurred after B.

• A formed after the horizontal layer above was deposited.

Tags

NGSS.MS-ESS1-4

Which accurately describes radioactive dating?

• geologists measure how stable parent elements decay into daughter elements

• geologists use only one type of radioactive dating

• Geologists determine half-life as radioactive elements get trapped in rock and break down over time.

• Geologists compare parent and daughter elements to determine rock type.

Tags

NGSS.HS-PS1-8