Scientific Method review

A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water.  In this experiment the independent variable is

• the number of plants in the water.

• the temperature of the water.

• the water.

• the amount of salt in the water.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is NOT a rule when writing a hypothesis?

• It is an if/then statement.

• It is testable.

• It should restate the question.

• It is a prediction.

Which of the following hypotheses is written correctly?

• If a tennis ball is frozen, it won't bounce as high as one that is not frozen.

• If I freeze a tennis ball, then it will not bounce as high.

• If I heat up a tennis ball it will bounce high.

• Frozen tennis balls will not bounce as high.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of  plants that can live in the water.  In this experiment the depended variable is

• the amount of salt in the water.

• the temperature of water.

• the water.

• the number of plants in the water.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

When a scientist shares her finding with other scientists, she is

• experimenting.

• analyzing data.

• making a hypothesis.

• communicating results.

A scientist who wants to study the affects of fertilizer on plants sets up an experiment.  Plant A gets no fertilizer, Plant B gets 5mg of fertilizer each day, and Plant C gets 10mg of fertilizer each day.  Which plant is the control group?

• Plant A

• Plant B

• Plant C

• all of them

Tags

NGSS.MS-LS2-1

A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact is a/an

• law.

• experiment.

• theory.

• hypothesis.

Tags

NGSS.MS-PS1-2

The steps used by scientists to solve problems and uncover facts is the

• system method.

• scientific method.

• testing method.

• question method.

The process of obtaining information by using your senses is called

• a scientific method.

• a conclusion.

• an inquiry.

• an observation.

Tags

NGSS.MS-LS1-8

The table shows the steps of the scientific method in the wrong order.

Which sequence shows the steps of the scientific method in the correct order?

• E, A, C, B, D

• A, E, D, C, B

• C, B, A, D, E

• A, C, E, D, B

• E, C, A, B, D

Tags

NGSS.MS-ETS1-3