Science Experiment Basics Quiz

What is the role of the independent variable in an experiment?

• It is the observed effect at the end of the experiment.

• It is the variable that the scientist intentionally changes.

• It eliminates other possible causes for the results.

• It provides an untested group for comparison.

Which term describes the standard system of measurement used by scientists worldwide?

• Imperial System

• Metric System

• Customary System

• English System

What is the purpose of the control group in an experiment?

• To receive the independent variable

• To provide an untested group for comparison

• To determine the difference between groups

• To eliminate other possible causes for the results

What does the term "constants" refer to in an experiment?

• Variables that change throughout the experiment

• Variables that stay the same to keep the experiment fair

• The observed effect at the end of the experiment

• The group that receives the independent variable

Tags

NGSS.MS-PS2-2

What is the primary function of a ruler or meter stick?

• Measures temperature

• Measures length or distance

• Measures mass

• Measures volume

In what units does a graduated cylinder typically measure?

• millimeters

• milliliters

• Grams

• centimeters

What does an electronic balance measure?

• volume

• length

• mass

• temperature

What is a scientific theory?

• A system of ideas that EXPLAINS many related observations

• An observation that describes WHAT happens

• A process of obtaining information using senses

Which of the following best describes a scientific law?

• A predictive statement relating variables

• An observation or equation that states WHAT happens and reliably predicts events

• A system of ideas that EXPLAINS many related observations

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

What is an independent variable in a scientific investigation?

• The factor that is observed or measured

• The factor that is intentionally changed

• A predictive statement relating variables