Nature of Science Review

What is the purpose of a control group?

• to compare experimental results to normal conditions

• to get data

A prediction or possible solution to a scientific problem that can be tested is a(n)

• control

• hypothesis

• variable

• conclusion

Which of thefollowing is an inference?

• You believe that a tree has 43 tree-rings by counting them.

• You believe the temperature is 75 degrees F by checking the thermometer.

• You believe the Moon has craters when you look through a telescope.

• You believe it rained when you see a mud puddle.

Which is an example of qualitative data?

• The plant is 10 cm tall.

• The banana is yellow.

• There are 10 pennies in the container.

• His pulse rate is 65 beats per minute.

Which is an example of quantitative data?

• The plant is 10 cm tall.

• The cookies smell sweet.

• The banana is yellow.

• The rabbit is soft.

What is the part of the experiment that stays the same during each trial?

• Hypothesis

• Independent Variable

• Dependent Variable

• Constant

Tags

NGSS.MS-PS2-2

What is the part of the experiment that is changed on purpose (by the experimenter) in each trial?

• Hypothesis

• Dependent Variable

• Independent Variable

• Constant

Tags

NGSS.MS-PS2-2

What is the part of the experiment that is measured in each trial?

• Control Group

• Independent Variable

• Dependent Variable

• Constant

Tags

NGSS.MS-PS2-2

What is the independent variable in Homer's experiment?

• type of treatment sprayed

• amount of slime

• the shower

• amount of days waited

What is the dependent variable in Homer's experiment?

• type of treatment sprayed

• amount of slime

• the shower

• amount of days waited

Tags

NGSS.MS-PS1-2