Which of the following is an example of an inference?

• The liquid is blue.

• The temperature is 22°C.

• The beaker contains water because it is clear.

• The mass is 5 grams.

Tags

NGSS.MS-PS1-2

A testable statement that explains a possible outcome is called a:

• Variable

• Hypothesis

• Theory

• Law

Tags

NGSS.MS-PS1-2

What is the independent variable in an experiment?

• The variable being measured

• The variable being kept constant

• The variable that changes because of the experiment

• The variable that the experimenter changes

Tags

NGSS.MS-PS2-2

What is the correct order of the steps in the scientific method?

• Hypothesis, Experiment, Question, Conclusion, Analysis

• Question, Hypothesis, Experiment, Analysis, Conclusion

• Experiment, Question, Hypothesis, Conclusion, Analysis

• Question, Experiment, Hypothesis, Conclusion, Analysis

Which of the following tools would be best for measuring mass?

• Thermometer

• Graduated cylinder

• Ruler

• Triple beam balance

Which graph is best for showing how a variable changes over time?

• Bar graph

• Pie chart

• Line graph

• Scatter plot

Which of the following represents a qualitative observation?

• 25 mL

• 100°C

• It smells sweet

• 20 grams

In a valid experiment, how many independent variables should there be?

• None

• One

• Two

• As many as possible

Which unit would you use to measure the length of a pencil?

• Liters

• Grams

• Meters

• Centimeters

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Electron

• Nucleus