Regular 8th Grade Science Ohio-Unit 1 Test

Observations that deal with descriptions that cannot be expressed in numbers are called

• manipulated observations

• quantitative observations.

• qualitative observations.

• responding observations.

Answer explanation

Qualitative observations deal with qualities that can't be counted such as color, texture, smells, etc.

When scientists put things into categories or group together items that are alike in some way, they are

• inferring.

• predicting.

• classifying.

• making models.

Tags

NGSS.MS-LS4-2

Interpreting observations based on reasoning from what you already know is called

• classifying.

• predicting

• inferring

• observing.

The following are sources of reliable information except

• universities.

• museums.

• government agencies.

• advertisements.

Answer explanation

Advertisements have a clear distinct bias towards their product, making them poor sources fo quality information

Being able to identify good sources of scientific information and apply the knowledge to problems in your life is a part of having

• scientific hypotheses.

• scientific inquiry.

• scientific literacy.

• Scientific laws

Tags

NGSS.MS-LS2-4

Reliable information comes from a person or an organization that is not

• Scientific.

• Biased

• Educated

• Tested

When scientists create a representation of a complex process, they are

• inferring.

• predicting.

• classifying.

• making models.

Tags

NGSS.MS-ETS1-4

When scientific investigations produce data that show new patterns that contradict existing conclusions, scientists should

• ignore the contradictory data and keep the old conclusions.

• check the data for errors and revise or replace the old conclusions if needed.

• throw out the old data and use the new data only to reach new conclusions.

• change the new data so that it fits the old conclusions.

Tags

NGSS.MS-PS1-2

The closeness of a measurement to its true value is its

• significant figures.

• estimate

• accuracy.

• precision

A line graph shows

• changes in the dependent variable only

• changes in the independent variable only.

• how the dependent variable changes in response to the independent variable.

• how the dependent variable changes on its own.

Answer explanation

A line graph shows how the dependent variable (y axis) changes in response to the independent variable (x axis)