Ohio Science

What is the definition of HALF-LIFE?

• Isotope that is unstable and decays; also called a radioactive isotope.

• Stable isotope that forms after the parent isotope decays.

• The time required for half of a sample of a radioactive isotope to break down by radioactive decay to form a daughter isotope.

• Any method of determining whether an event or object is older or younger than other events or objects.

Tags

NGSS.HS-PS1-8

What is the definition of FOSSIL?

• A long cylinder of ice obtained from drilling through ice caps or ice sheets; used to study past climates.

• Faults or intrusions are younger than any layer of rock they cut through.

• The trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock.

• The weather conditions in an area over a long period of time.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What is the definition of CLIMATE?

• The weather conditions in an area over a long period of time.

• Isotope that is unstable and decays; also called a parent isotope.

• A long cylinder of ice obtained from drilling through ice caps or ice sheets; used to study past climates.

• Any method of measuring the age of an event or object in years.

Tags

NGSS.MS-ESS2-6

Which of the following best describes the flow of energy in an ecosystem?

• It flows from decomposers to producers to consumers

• It is recycled among producers only

• It flows from producers to consumers to decomposers

• It flows directly from the sun to all living organisms equally

Tags

NGSS.MS-LS2-3

Why are producers vital to an ecosystem?

• They are the only organisms capable of photosynthesis

• They provide the energy base for all other organisms in the ecosystem

• They consume the most energy in an ecosystem

• They are the largest organisms in an ecosystem

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What does an energy pyramid show?

• The amount of energy consumed by humans

• The number of animals in an ecosystem

• The flow of energy from one trophic level to the next in an ecosystem

• The physical structure of a forest

Tags

NGSS.MS-LS2-3

What is the definition of ICE CORE?

• The weather conditions in an area over a long period of time.

• Faults or intrusions are younger than any layer of rock they cut through.

• A long cylinder of ice obtained from drilling through ice caps or ice sheets; used to study past climates.

• An ordered arrangement of rock layers that is based on the relative ages of the rocks (older rocks are at the bottom).

Tags

NGSS.MS-ESS2-4

What is the definition of RELATIVE DATING?

• An ordered arrangement of rock layers that is based on the relative ages of the rocks (older rocks are at the bottom).

• Any method of measuring the age of an event or object in years.

• Any method of determining whether an event or object is older or younger than other events or objects.

• A method of determining the absolute age of an object by comparing the amount of parent isotope vs. daughter isotope and using half-life.

What is the definition of ABSOLUTE DATING?

• An ordered arrangement of rock layers that is based on the relative ages of the rocks (older rocks are at the bottom).

• Any method of measuring the age of an event or object in years.

• Any method of determining whether an event or object is older or younger than other events or objects.

• A method of determining the absolute age of an object by comparing the amount of parent isotope vs. daughter isotope and using half-life.

What is the definition of RADIOMETRIC DATING?

• An ordered arrangement of rock layers that is based on the relative ages of the rocks (older rocks are at the bottom).

• Any method of measuring the age of an event or object in years.

• Any method of determining whether an event or object is older or younger than other events or objects.

• A method of determining the absolute age of an object by comparing the amount of parent isotope vs. daughter isotope and using half-life.