8th Grade Science - EOG Review

Which of theses provides the best evidence that an environmental change has occurred?

• a freshwater lake in the mountains

• marine fossils in a freshwater lake

• saltwater clams in the ocean

• a sandy beach next to the ocean

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which method would be best for scientists to use to determine the absolute age of a Precambrian igneous rock?

• index fossils

• law of superposition

• radiometric dating

• law of original horizontality

Tags

NGSS.MS-ESS1-4

Paleontologists are scientists who study evidence of past life on Earth. Which method do paleontologists most likely use to determine the forms of life that existed millions of years ago?

• examine current species of plants and animals

• research past species in the library

• interview older scientists

• examine fossil records

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

In what type of rock would a geologist most likely find evidence of ancient life?

• sedimentary

• foliated

• metamorphic

• volcanic

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

A fossil discovered in Colorado dates from the early Mesozoic era. A year later a similar fossil is found in Wyoming that also dates from the early Mesozoic era. These two organisms mot likely lived in

• the same environment at about the same time

• the same environment at different times

• different environments at about the same time

• different environments at different times

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Which may cause scientists to be concerned about the quality of lake water?

• low levels of salt

• low levels of arsenic

• high levels of oxygen

• high levels of nitrates

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which has the greatest long-term impact on local water availability?

• runoff

• climate

• pollution

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Which type of water reservoir contains the largest volume of fresh water?

• lakes

• rivers

• ice sheets

• aquifers

Tags

NGSS.MS-ESS3-1

A recreational lake experiences eutrophication because of excess nutrients. Based on this information, how would the recreational lake most likely appear?

• clear and blue

• oily and greasy

• murky and full of algae

• orange and rust colored

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which is the main source of dissolved oxygen in the ocean?

• underwater earthquakes

• decay of living organisms

• animals that live near the surface

• plants and algae that live near the surface

Tags

NGSS.MS-LS1-6