Nature of Science

What is the first step in the scientific method as described in the video?

• Making an observation

• Analyzing data

• Forming a hypothesis

• Conducting an experiment

What is a hypothesis?

• A detailed procedure for an experiment

• A graphical representation of data

• A conclusion based on observations

• A testable explanation for a phenomenon

What misconception did the narrator have about the scientific method?

• It involves only one experiment

• It is a linear sequence of steps

• It does not require a hypothesis

• It is a flexible process

What is the major goal of science?

• To prove existing theories

• To conduct experiments

• To gain knowledge

• To create new technologies

Tags

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What are inferences based on?

• Hypotheses

• Experiments

• Evidence gathered

• Conclusions

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NGSS.MS-LS1-5

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What is a control group in an experiment?

• A group that receives a different treatment

• A group that does not receive the treatment

• A group that receives the treatment

• A group that is not observed

What is the independent variable in an experiment?

• The variable that is manipulated

• The variable that is measured

• The variable that responds

• The variable that is constant

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NGSS.MS-PS2-2

What does the mnemonic DRY MIX help you remember?

• The steps of the scientific method

• The placement of variables on a graph

• The types of scientific investigations

• The importance of credible sources

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Why is science considered a global endeavor?

• It is a finished field of study

• It is limited to natural phenomena

• It involves collaboration and creativity

• It is only conducted in certain countries

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Sabrina wants to test which brand of popcorn pops the most kernels. She picked a Giant Eagle brand, Orville Redenbacher, and PopSecret. All three bags started with the same number of kernels. She popped each for 3 minutes in the same microwave, and then counted the number of kernels left over. What is her independent variable?

• Number of kernels left over

• Brand of popcorn

• Number of kernels before popping

• Length of time cooking

Tags

NGSS.MS-ETS1-3