Variables

Which variable do you change for a scientific investigation?

• Dependent variable

• Independent variable

• Controlled variable

• Varying variable

Tags

NGSS.MS-PS2-2

Which variable reacts to what you change in a scientific investigation?

• Dependent variable

• Independent variable

• Controlled variable

• a varying variable

Tags

NGSS.MS-PS2-2

What is a hypothesis?

• the right answer in an experiment

• the wrong answer in an experiment

• an educated guess; what you think will happen

• A really energetic paper

What is the independent variable in this experiment?

Will a person wake up earlier if they drink water?

• the person

• the time it takes for a person to wake up

• the water

• none of these

What is the dependent variable in this experiment?

Does the type of pen determine how fast you write?

• the type of pen

• how fast you write

• the person writing

• none of these

What is the independent variable in the experiment?

Mr. Block wants to see which treat causes her cat, Whiskers, to jump the highest.

• the type of treat

• how high Whiskers jumps

• the type of cat

• Mr. Block

Tags

NGSS.3-5-ETS1-3

Why do we only test one variable at a time?

• It is too much work to use more than one variable

• It is how it's always been done

• We want to know what is causing the change that occurs

• There is no reason

Tags

NGSS.3-5-ETS1-3

Generally, how many times should each trial in an experiment be repeated?

• 1

• 2

• 3

• 5

Tags

NGSS.3-5-ETS1-3

When testing your ability to jump different distances, which of the following could be the controlled variable?

• the length of the jump

• the size of your muscles

• the time of day you train

• none of these

Tags

NGSS.3-5-ETS1-3

In an experiment where you see how the height of a roller coaster track affects the speed of a roller coaster, the type of roller coaster is what type of variable?

• dependent variable

• independent variable

• controlled variable

• none of these

Tags

NGSS.3-5-ETS1-3