Semester 1 Test Review #1

A prediction or guess based on observations.

• data
• scientific process
• hypothesis
• question

The information you collect while doing your experiment is called

• conclusions

• data

• hypotheses

• procedures

Tags

NGSS.MS-PS2-2

What is being changed in this experiment?

• ramp height
• the speed that the ball rolls
• type of ball

What is being kept constant?

• ramp height
• speed of the ball rolling
• type of ball

How many independent variables should you have in an experiment?

• two

• as many as possible

• four

• one

Tags

NGSS.MS-PS2-2

What is the Responding (Dependent) Variable in this graph?

• Plant Growth
• Growth (cm)
• Hours
• 15

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is the dependent variable of the graph?

• Grade
• Number of Students

A student wants to test the effects of different types of exercise on heart rate.  What would be the dependent variable of the experiment?

• the measurement of heart rate

• type of exercise
• amount of exercise
• time of day exercise occurs

Tags

NGSS.MS-PS3-5

4. What must you do before you make a hypothesis?

• a. Run an experiment
• b. Make observations
• c. Form a theory
• d. Draw conclusions

7. What might cause a theory to change over time?

• a. New laws passed by the government
• b. New but untestable ideas
• c. Changes in public opinion
• d. The discovery of new evidence

Tags

NGSS.HS-PS1-2