Scientific Method

How do you find the range of a set a data?

• the biggest number minus the smallest number in the group

• the smallest number minus the biggest number in the group

• the biggest number plus the smallest number in the group

• the smallest number multiplied by the biggest number in the group

What is the final step in the scientific method?

• Write a conclusion about your results

• Record and analyze the data

• Form a hypothesis

• Research your topic

Tags

NGSS.MS-LS1-5

What is the purpose of the scientific method?

• To solve problems and create experiments

• To research new information

• To practice safety

• To become a scientist

Tags

NGSS.MS-LS1-5

NGSS.MS-PS1-2

Which is a good example of a hypothesis for the following scientific question, "Does playing violent video games lead to higher blood pressure?"

• Playing violent video games gives people higher blood pressure.

• If you have higher blood pressure, then you play violent video games.

• If you play violent video games you will have higher blood pressure.

• If you play violent video games, then you will have higher blood pressure.

Why is the following considered a bad hypothesis? "If your plants grew taller, then they were given fertilizer."

• It doesn't have "if" and "then"

• The prediction is wrong

• The independent and dependent variable are in the wrong order

• This is a good hypothesis

Jennifer wants to know if students do better on their homework if they listen to classical music or hip hop music. What is the independent variable in this experiment?

• Students' grades on homework

• The age of the students

• The volume of the music

• The type of music

A dependent variable is __________.

• What is measured in an experiment

• What you change in an experiment

• A prediction about an experiment

• What stays the same in an experiment

Tags

NGSS.MS-PS3-4

What does a good scientific question need to have?

• It needs to have an independent variable

• It needs to have a dependent variable

• It need to be measurable

• All of these are needed in a good scientific question

A qualitative observation is ________.

• Describing qualities and characteristics

• A guess you make using an observation

• Numbers and labels

• What is kept the same in an experiment

What is an example of an inference?

• It is going to rain later today.

• The clouds are dark gray.

• The temperature is 67 degrees Fahrenheit.

• All of these are examples of inferences.