CFE Variables/Repetition Replication Exit Slip

The BEST reason you always repeat an experiment is to (a)   .

• Make sure your data is consistent a

• Make sure your data supports your p

• Make sure your experiment is easy t

• Make sure your experiment has lots

Tags

NGSS.MS-ETS1-4

What is the best way to make sure your data is accurate in an experiment? (a)  

• Do research
• Do your experiment multiple times
• Make a prediction
• Form a conclusion

Tags

NGSS.MS-PS1-2

Replication is when one scientist

• copies another scientist's experiment.

• laughs at another scientist's experiment.

• repeats their own experiment several times.

• clones another scientist.

Repetition is when one scientist

• copies another scientist's experiment.

• bumps into another scientists.

• repeats their own experiment several times.

• clones a T. rex.

Caira reads in a science journal that replication and repetiton are so important, but she did not understand the  difference between them. Which of the following best explains the two terms?

• Repetition is when a scientist repeats an experiment; replication is when a scientist conducts an experiment on genetic material.
• Repetition is when a scientist does the same experiment a number of times; replication is when other scientists reproduce a scientist’s experiment.
• Repetition is when a scientist publishes in more than one scientific periodical; replication is when another scientist reproduces another scientist’s results.
• Repetition is when a scientist commits an error in an experiment the first time and must repeat it; replication is when a scientist repeats an experiment to make sure it is valid.

Daniel and Alex are both scientists. Daniel conducts an experiment testing different fuel sources for cars in the future. Daniel conducts each test three times in order to compare his data. After he finishes the trials, Daniel showed Alex his results from each trial. Alex is confused about Daniel’s results, so he decides to conduct the experiment for himself. Which scientific process did each scientist use?

• Alex and Daniel used each others data to compare their results.

• Alex and Daniel used the same hypothesis to compare their results.

• Daniel used repetition in his experiment while Alex replicated Daniel's experiment

• Daniel used replication in his experiment while Alex used repetition to conduct Daniel's experiment.

The variable that is changed on purpose is (a)   .

• Constant
• Control
• Independent Variable
• Dependent Variable

The variable that is being tested, counted, or measured and is responding to the independent variable is known as  (a)  

• Control
• Constant
• Independent Variable
• Dependent Variable

Randell wants to determine if salt in the water has an effect on his goldfish. What is the independent variable? (a)  

• how much salt is in the water
• temperature
• health of his goldfish
• amount of algae in the tank

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Randell wants to determine if salt in the water has an effect on his goldfish. What is the dependent variable? (a)  

• how much salt is in the water
• temperature
• health of his goldfish
• amount of algae in the tank

Tags

NGSS.MS-LS1-5