Science & Engineering Practices

Which of the following is a key step in the scientific method?

• Ignoring data that doesn't fit your hypothesis

• Formulating a hypothesis

• Skipping the experiment if the hypothesis seems correct

• Publishing results without peer review

What is the primary purpose of conducting an experiment in scientific research?

• To prove a hypothesis correct

• To gather data and test a hypothesis

• To make a hypothesis more complex

• To avoid peer review

Tags

NGSS.MS-LS1-5

Which of the following best describes a control variable in an experiment?

• A variable that is changed to see its effect

• A variable that is kept constant to ensure a fair test

• A variable that is not measured

• A variable that is irrelevant to the experiment

In engineering, what is the purpose of creating a prototype?

• To finalize the design

• To test and refine the design

• To sell the product

• To avoid further testing

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Which of the following is an example of a qualitative observation?

• The temperature is 25°C

• The solution turned blue

• The mass is 50 grams

• The length is 10 cm

What is the role of peer review in scientific research?

• To ensure the research is kept secret

• To validate the research through evaluation by other experts

• To make the research more complex

• To avoid criticism

Which of the following is a quantitative observation?

• The liquid is clear

• The plant grew 5 cm

• The metal is shiny

• The sound is loud

What is the first step in the engineering design process?

• Building a prototype

• Identifying the problem

• Testing the solution

• Communicating the results

Which of the following best describes a hypothesis?

• A proven fact

• An educated guess that can be tested

• A random guess

• A detailed experiment

In an experiment, what is the independent variable?

• The variable that is measured

• The variable that is changed or controlled

• The variable that is kept constant

• The variable that is irrelevant