Nature of Science Practice

What is a hypothesis?

• An educated guess

• A hypothesis is a question on what you think will happen.

• A testable prediction for the outcome of an experiment

• A prediction that you can test using research

The variable that a scientist actively changes"What I test."

• independent variable (IV)

• quantitative data

• dependent variable (DV)

• qualitative data

Tags

NGSS.MS-PS2-2

The variable that is measured in an experiment

• independent variable (IV)

• quantitative data

• dependent variable (DV)

• qualitative data

A tested prediction, written in a IF/THEN statement. What will happen based on reasearch.

• Control

• Conclusion

• Hypothesis

• Dependent Variable

Tags

NGSS.MS-LS1-5

What is learned based on the results from the experiment.

• Hypothesis

• Conclusion

• Dependent Variable

• Control

Tags

NGSS.MS-LS1-5

The variable that is changed by the scientist to test a hypothesis is called the _________________________ .

• dependent variable

• independent variable

• control

Justin believes that the temperature lowering during the fall months is what causes the color of the leaves to change. He sets up an experiment wherein he placed some plants in 80 degrees rooms and some in 60 degree rooms. He then observed the color of the leaves for a total of 1 month. At the end of the month Justin observed that ¾ of the plants in the 60 degree temperature had been to change colors and only ¼ of the plants in the 80 degree temperature began to change colors.

What is the independent (test) variable?

• The temperature of the room

• The color of the leaves

• How long he lets the plants grow

• The type of plant that Justin uses

Which of the following is an example of an observation?

• Karen heard a noise and assumes it is raining

• The glass felt cold

• John saw a ball coming toward him and put his hands up to catch it

• Jack knew it was going to rain when he saw the clouds in the sky

Tags

NGSS.MS-LS1-8

Which of the following is an example of an inference?

• Kevin notices that his hands are cold

• Drew feels that the paper is wet

• Doug guesses his parents aren't home because he doesn't see their car

• Amber sees a dog jumping and watches it running

Which of the following is an example of qualitative data?

• A 100g beaker

• A pencil that is 13 centimeters long

• The volcano bubbled

• The animal ate 2 times