7th Grade Science Pretest 2022-2023

A friend reads in a book that a piece of black paper will get warmer in sunlight than a piece of white paper. Which of these is a scientific reaction to this information?

• Accept the statement as true because your friend knows about science.

• Design an experiment to show whether the statement is correct or incorrect.

• Believe the statement because it was written in a book, so you can trust it to be true.

• Tell your friend that the statement makes no sense.

• I don’t know.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A student measures the time it takes for a sheet of paper to fall to the ground from a marked height. The student then crumples the same piece of paper andn drops the paper from the same height. The student observes that the paper fell faster the second time. What was the independent variable?

• the shape of the paper

• the height of the drop

• the length of time for the paper to fall

• the speed at which the paper fell

• I don’t know.

You are making a measurement using meters and find that the number value is 10. What is the correct way to write this scientific measurement?

• meters

• 10

• 10 meters

• meters 10

• I don't know.

Scientists use computer models to study black holes. What is the most likely reason a computer model is being used?

• Black holes do not actually exist.

• Black holes are too small to study.

• Black holes are too dark to study.

• Black holes are too far from Earth.

• I don't know.

Which of the following pairs of statements correctly identifies the goals of science and engineering?

• science: construct explanations of the natural world; engineering: address the needs of society

• science: develop new technology to explore the natural world; engineering: apply mathematics to the study of the natural world

• science: improve human quality of life; engineering: learn about the natural world

• science: develop manmade systems; engineering: develop tools and machine

• I don't know.

Humans can cause different types of pollution. When fertilizers and pesticides make their way into water systems, which type of pollution has taken place?

• air

• biological

• chemical

• thermal

• I don't know.

Tags

NGSS.MS-ESS3-3

NGSS.MS-PS1-2

Which of the following best describes the relationship between developing nations, clean water, and human health?

• Many developing nations lack access to clean water; this can harm human health.

• Clean water is never available in developing nations, so human health is always a major issue there.

• Human health does not depend on clean water; health issues in developing nations are not related to water.

• Contaminated water and human health is not a problem in developing nations, but it is a problem in developed nations.

• I don't know.

Tags

NGSS.MS-LS2-1

Within which type of water body does water move the slowest?

• river

• cloud

• ocean

• groundwater

• I don't know.

Which of the following characteristics of a watershed would act to reduce erosion?

• large floodplain areas

• soil with a high porosity

• a large number of lakes

• channels with a low gradient

• I don't know.

Which three factors most directly affect surface currents in the oceans?

• upwelling, convection, and the sun’s energy

• deep currents, convection currents, and surface winds

• dissolved solids, dissolved gases, and the sun’s energy

• surface winds, the Coriolis effect, and continental deflection

• I don't know.

Tags

NGSS.MS-ESS2-6