Methods of Science Review

A measurement, an observation, or a statement that can be strictly defined is

• a fact

• an opinion

• a prediction

Which activity is usually NOT the first step of scientific inquiry?

• asking a question

• gathering information

• communicating results

Which tool would a scientist use to measure mass?

• thermometer

• graduated cylinder

• triple-beam balance

In a controlled experiment, the factor that is measured or observed is the _______

• dependent variable

• independent variable

• hypothesis

A possible explanation for an observation that can be tested by scientific investigations is a(n) _______

• hypothesis

• scientific law

• scientific theory

A(n) ____ is a rule that describes a pattern in nature.

• hypothesis

• scientific law

• scientific theory

The factor in a controlled investigation that is changed by the investigator to observe how it affects a dependent variable is the ______

• dependent variable

• independent variable

• hypothesis

An explanation of observations or events that is based on knowledge gained from many observations and investigations is a(n) ____

• hypothesis

• scientific law

• scientific theory

What unit in the International System on Units (SI) is used to measure length?

• Second

• Kelvin

• Meter

• Kilogram

What unit in the International System on Units (SI) is used to measure mass?

• Second

• Kelvin

• Meter

• Kilogram