Scientific Method

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.

• Only people who play violent video games have higher blood pressure.

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

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-PS1-2

What is the first step in the scientific method?

• Form a hypothesis

• Make an observation and ask a question about it

• Research your topic

• Record and analyze data

The independent variable is the ONE thing you _____.

• change on purpose
• control or keep constant
• measure

How many independent variables should you have in an experiment?

• two

• as many as possible

• four

• one

Dilcia wants to know how drinking milk affects how tall a child grows. Which is the independent variable?

• the child's growth

• drinking milk

Tags

NGSS.MS-LS1-5

Ramone wants to know: does the distance a person kicks a soccer ball effect how well they will do on their math test.  What is the dependent variable?

• How far they kick the soccer ball
• who the person is
• how well they do on the math test
• Type of soccer ball.

What is the INDEPENDENT variable? You are testing which type of paper airplane goes furthest?

• the paper used

• the type of paper airplane

• the distance of each plane's flight

• how hard the plane is thrown

Tags

NGSS.MS-PS2-2

Marcos wants to know: Does the type of gasoline put in a car effect how fast the car can drive? What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

Tags

NGSS.HS-PS2-1