Scientific Method

What is a possible answer or explanation to a question based on knowledge, observations, and research?

HINT: It is often written in "if...then" format.

• Observation

• Hypothesis

• Experiment

• Conclusion

Answer explanation

A hypothesis should by a clear and simple statement that can be tested.

Will our results always support our hypothesis?

The information gathered from making observations is called ____.

• data
• experiment

• graph

• procedure

Tags

NGSS.MS-LS2-1

How many independent variables should we change when conducting an experiment?

• 1

• 2

• 3

• As many as we want

What is the independent variable in the following scenario?

"The blood pressure of a soldier is measured while he is resting. The soldier is then exposed to a stressful environment and his blood pressure is measured again."

• the environment

• the soldier

• blood pressure

• none of the above

What is the dependent variable in the following scenario?

"The blood pressure of a soldier is measured while he is resting. The soldier is then exposed to a stressful environment and his blood pressure is measured again."

• the environment

• the soldier

• blood pressure

• none of the above

What is a controlled variable?

• The variable being tested or changed by the scientist, also known as the manipulated variable.

• The variable that the

  scientist is measuring or

  observing, also known as the responding variable.

• The variables that the scientist keeps constant, which allows them to attribute the results to the independent variable alone.

The information you collect while doing your experiment is called

• conclusions

• data

• hypotheses

• procedures

The _________________________ answers the problem you are trying to solve in an experiment and explains the results to others.

• procedure

• hypothesis

• conclusion

• data

Tags

NGSS.MS-LS1-5

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• True
• How fast you get to school
• Riding a bike or walking
• False

Tags

NGSS.MS-PS3-1

Will a construction paper air plane fly faster than an airplane made from notebook paper? Choose the best hypothesis.

• If I make a paper airplane from notebook paper, then it will fly faster than construction paper.
• Yes.
• No.
• I think the construction paper air plane will fly faster.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-PS2-2