Science 5 Chapter 1

True or false.

A scientist's opinion is a valid source of information to use in a scientific investigation.

• True

• False

Answer explanation

This statement is FALSE because a scientist's opinion is not reliable unless it is supported by facts.

True or false.

Scientists make observations very carefully.

• True

• False

Answer explanation

This statement is TRUE because scientists need to make sure the information they gather is reliable.

Something you find out about objects, events, or living things using your senses

• is an inference

• is a hypothesis

• are observations

• are investigations

Tags

NGSS.MS-LS1-8

A statement of what you think will happen during an investigation is

• a hypothesis

• valid

• a reliable source

• an experiment

True or False.

The only way to test a scientific hypothesis is to perform an experiment.

• True

• False

Answer explanation

This statement is false because sometimes it is not possible to perform an experiment. Scientists can also test a scientific hypothesis using models, surveys, and sampling.

True or false.

The steps used in scientific methods must always be performed in the same order.

• True

• False

Answer explanation

This statement is false because the order of the steps depends on the specific scientific investigation.

A standard against which change can be measured is

• a variable

• a control group

• an experiment

• an observation

Tags

NGSS.MS-LS2-4

The use of scientific methods to test your hypothesis is

• a variable

• a control group

• an experiment

• an observation

FOUR types of investigations that scientists use are

• experiments

• methods

• models

• sampling

• surveys

True or false.

If you collect, organize, and interpret your data properly, you will ALWAYS be able to draw a logical conclusion.

• True

• False

Answer explanation

This statement is false because after analyzing your data, you may realize that you do not have enough information to draw a logical conclusion.

Tags

NGSS.MS-ETS1-3

NGSS.MS-PS1-2