Variables and Scientific Observation Quiz

Are test scores impacted by the amount of sleep students get the night before? What is the independent variable in this scenario?

• Amount of sleep students get

• Test scores

• Number of students in the class

• Type of test given

How does exercise affect the amount of food you eat? What is the dependent variable in this scenario?

• Amount of food you eat

• Amount of exercise

• Type of exercise

• Time of day

The faster Jack pedals his bike, the further his bike will go. What is the dependent variable in this scenario?

• Distance the bike will go

• Speed Jack pedals

• Type of bike

• Weather conditions

Tags

NGSS.MS-PS2-2

You leave the movie theater and see that the street is wet. Which of the following statements would be a correct inference?

• It probably rained while you were in the theater.

• The street is always wet.

• Someone washed the street every day.

• The movie caused the street to be wet.

The leaves are changing color because the days are getting shorter. Is this an observation or an inference?

• Observation

• Inference

• Hypothesis

• Experiment

What variable goes on the x-axis in a scientific experiment?

• Dependent variable

• Control variable

• Independent variable

• Constant

What effect does higher temperature have on the speed of radish germination? In this experiment, what is the constant?

• Temperature

• Speed of germination

• Type of plant (radish)

• Amount of water

Tags

NGSS.MS-LS1-5

If a plant gets sunlight, then it will grow. In this statement, what is the independent variable?

• Amount of water

• Amount of sunlight

• Growth of the plant

• Type of soil

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

Sally wants to know how listening to music affects the basketball teams' number of baskets. Which group is the experimental group?

• The team that does not listen to music

• The team that listens to music

• Both teams

• The coach

Does a ball's circumference affect its bounce height? What is the independent variable in this experiment?

• The ball's circumference

• The bounce height

• The type of surface

• The color of the ball

Tags

NGSS.MS-PS2-2