Problem Solving

When solving the problem of a flat tire on a bicycle, which of the following would be an example of a hypothesis?

• If the tire is flat, then it might have an air leak due to a faulty valve system on the tube.

• There was no hole found in the tire

• Inflate the tire pressure to 32 PSI

• The valve on the tire seemed intact

When conducting an experiment to determine the boiling point of water at different altitudes, which of the following would be a valid hypothesis?

• A) Water boils at a lower temperature at higher altitudes due to decreased atmospheric pressure.

• B) Water boils at 100°C regardless of altitude.

• C) Water boils faster in a wider pot.

• D) Water boils at a higher temperature at higher altitudes due to increased atmospheric pressure.

Which of the following is an example of a scientific problem-solving method?

• A) Guessing the outcome of an experiment.

• B) Using the scientific method to test a hypothesis.

• C) Ignoring data that doesn't fit the hypothesis.

• D) Relying on intuition to draw conclusions.

Tags

NGSS.MS-LS1-5

In a controlled experiment, what is the purpose of the control group?

• A) To provide a standard for comparison against the experimental group.

• B) To ensure the experiment is conducted multiple times.

• C) To introduce new variables into the experiment.

• D) To eliminate the need for a hypothesis.

Which of the following best describes the role of a variable in a scientific experiment?

• A) A variable is a factor that remains constant throughout the experiment.

• B) A variable is a factor that is changed to observe its effect on the experiment.

• C) A variable is a factor that is ignored during the experiment.

• D) A variable is a factor that is used to confirm the hypothesis.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

When analyzing data from an experiment, what is the first step a scientist should take?

• A) Draw conclusions based on initial observations.

• B) Organize and summarize the data collected.

• C) Discard any data that does not support the hypothesis.

• D) Publish the results immediately.

Which of the following is an example of a real-world application of problem-solving in science?

• A) Developing a new theory without testing it.

• B) Using a model to predict weather patterns.

• C) Ignoring experimental errors in data analysis.

• D) Conducting an experiment without a hypothesis.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

In the context of scientific research, what does the term 'peer review' refer to?

• A) The process of conducting experiments multiple times.

• B) The evaluation of scientific work by others in the same field.

• C) The publication of research findings in a scientific journal.

• D) The collaboration between scientists on a research project.

Which of the following statements is an example of a testable scientific hypothesis?

• A) Plants grow faster when they are happy.

• B) If plants are given fertilizer, then they will grow taller than those not given fertilizer.

• C) Plants are more beautiful when they are healthy.

• D) Plants need love to grow.

What is the primary purpose of using a model in scientific problem-solving?

• A) To simplify complex systems and predict outcomes.

• B) To replace experiments entirely.

• C) To ensure all variables are controlled.

• D) To eliminate the need for data collection.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS3-2