Scientific Method, Mass and Measurement Practice

The first step in the scientific method is (a)  

• Hypothesis
• Experiment
• Question
• Conclusion

Answer explanation

The first step in the scientific method is to ask a question. This is essential to guide the research process and form a basis for further investigation.

In which step do you test your hypothesis?

• Hypothesis

• Data Analysis

• Experiment

• Conclusion

Answer explanation

In the Experiment step, you test your hypothesis to determine its validity and accuracy before drawing any conclusions.

Which step involves sharing your findings with others?

• Publish

• Communication

• Question

• Revise

Answer explanation

The step that involves sharing your findings with others is 'Communication'. This step focuses on effectively conveying your results to a wider audience.

Tags

NGSS.MS-PS3-5

In a testable question, which variable changes?

• Control Variable

• Dependent Variable

• Constant Variable

• Independent Variable

Answer explanation

In a testable question, the variable that changes is the Independent Variable.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS2-2

What is another name for the variable that is measured in an experiment?

• Dependent Variable

• Independent Variable

• Control Variable

• Constant Variable

Answer explanation

The correct name for the variable measured in an experiment is the Dependent Variable, as it depends on the changes made to the Independent Variable.

What characteristics define a testable question?

• Specific

• Scientific

• Serious

• Observable

Answer explanation

A testable question must be specific, scientific, and observable to ensure it can be effectively tested and analyzed.

What is a hypothesis?

• an observation

• something that you know

• an educated guess

• what you keep the same in an experiment

Answer explanation

A hypothesis is an educated guess made before conducting an experiment to guide the research process.

"I was wrong; the plant needed water once a week." This is an example of a:

• conclusion

• data

• hypothesis

• procedure

Answer explanation

The correct choice is 'conclusion' because the statement reflects a final judgment based on evidence or reasoning, indicating the end result of a thought process.

Match the following statements with their types:

• "First, I'm going to record the temperature, then I'm going to water the plant."

• data

• "If I water the plant, it will grow faster."

• procedure

• "The plant grew 5 cm after two weeks of watering."

• hypothesis

• "The recorded temperatures are 20°C, 22°C, and 24°C."

• conclusion

Answer explanation

The correct choice is 'procedure' because the statement outlines a series of steps to be followed in a specific order.

"The car traveled 70 cm after leaving the ramp." This is an example of

• conclusion

• procedure

• question

• data

Answer explanation

The statement 'The car traveled 70 cm after leaving the ramp' is a piece of data, providing information about the car's movement, making 'data' the correct choice.