CHEM U1 Test Review

____ is the systematic study of the structure and behavior of the natural world through observation and experiment.

• science

• theory

• controlled experiment

• law

• variable

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

_ is a concise statement based on repeated experimental

observation that describes some aspect of the world.

• science

• theory

• controlled experiment

• law

• hypothesis

_ is a detailed explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.

• science

• theory

• controlled experiment

• law

• hypothesis

Tags

NGSS.HS-PS1-2

_ is an educated guess or prediction.

• science

• theory

• controlled experiment

• law

• hypothesis

A __ has only two variables: the independent variable and the dependent variable.

• control group

• theory

• controlled experiment

• law

• constant

__ are things that do not change in the experiment.

• control group

• theory

• controlled experiment

• law

• constant

__ is the standard by which the test results can be compared.

• control group

• variable

• controlled experiment

• law

• constant

__ is a factor that changes during the experiment.

• control group

• variable

• controlled experiment

• law

• constant

TRUE or FALSE:

A scientific theory can become a scientific law if there is enough evidence.

• TRUE

• FALSE

TRUE or FALSE:

A scientific hypothesis can become a scientific theory if there is enough evidence.

• TRUE

• FALSE