The Scientific Method

What prompted the decision to solve the sandwich problem?

• The sandwich was soggy for several days.

• The sandwich was too dry.

• The sandwich was missing.

• The sandwich was too sweet.

What is the first step in the scientific method?

• Make an observation and ask a question

• Form a hypothesis

• Conduct an experiment

• Analyze data

What does the scientific method help ensure about conclusions?

• They support pre-existing beliefs.

• They are always correct.

• They are accurate and not based on false assumptions.

• They are based on personal opinions.

Tags

NGSS.MS-LS2-4

NGSS.MS-PS1-2

What was the initial hypothesis about the soggy sandwich?

• Packing the sandwich in a container would prevent sogginess.

• The sandwich needed more peanut butter.

• The jelly type was causing sogginess.

• The bread type was the issue.

What did the first experiment conclude?

• The jelly was not the issue.

• The container solved the problem.

• The sandwich was still soggy.

• The bread was not soggy.

What is a hypothesis?

• A guess without basis

• A proposed explanation for further investigation

• A question based on observation

• A detailed conclusion

Tags

NGSS.HS-LS3-1

What was the second hypothesis formed?

• Using a different jelly

• Packing the sandwich with a desiccant

• Putting peanut butter on both sides of the bread

• Using a different type of bread

Tags

NGSS.MS-ETS1-3

How did the second experiment turn out?

• The sandwich was still soggy.

• The sandwich was too dry.

• The sandwich was not soggy.

• The sandwich tasted different.

Tags

NGSS.MS-PS1-2

What role does peanut butter play in preventing sogginess?

• It absorbs moisture.

• It acts as a barrier.

• It adds flavor.

• It reacts with the jelly.

Why is it important to communicate your results?

• To get a reward.

• To make friends.

• To contribute to scientific knowledge.

• To prove you are right.

Tags

NGSS.HS-ESS3-1

NGSS.HS-ETS1-3

NGSS.HS-LS2-6