AnswersAISD-TX-Earth Systems A - Credit Recovery 2025-26Scientific Knowledge

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1
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When 560,000 is written in scientific notation, what is the power of 10?

A
4
B
5
C
6
D
7
2
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Which set of data is best described as accurate and precise when compared to an accepted value of 125?

A
130, 125, 109, 210
B
122, 126, 121, 123
C
125, 100, 109, 200
D
190, 190, 191, 192
3

Which best explains why replicating an experiment should be done by someone other than the person who originally did the experiment?

A
It shows that the results are the same using different methods.
B
It shows that the experiment is easy to do.
C
It shows that the results are as expected.
D
It shows that the experiment is designed properly.
4

What does it mean if an experiment exhibits reproducibility?

A
The experimental conditions are simple and do not require a lot of materials.
B
The experimental conditions are always kept the same.
C
The results of the experiment are always accurate.
D
The same results are expected each time the experiment is done.
5

Which describes reproducibility?

A
The ability of data to be published.
B
The ability of data to be duplicated.
C
The ability of data to be changed.
D
The ability of data to be invalidated.
6

A scientist conducted one trial of an experiment and got unexpected results. How can the scientist increase confidence in the results?

A
by repeating the experiment several times
B
by changing the experimental procedure
C
by asking other scientists what they think about the results
D
by modifying the results so they are close to the expected results
7

Which two characteristics of data always occur together?

A
high accuracy and high precision
B
high precision and good validity
C
low accuracy and low precision
D
low accuracy and good validity
8

Renald completed only one trial of his experiment. What effect will this most likely have?

A
The results are more likely to have errors.
B
The results are more likely to be precise.
C
The experiment will be harder to replicate.
D
The experiment will be easier to replicate.
9

What does it mean if data are reproducible but not accurate?

A
The data can be produced over and over but are not close to the accepted value.
B
The data are close to the accepted value but cannot be produced over and over.
C
The data are close to the accepted value and are close to one another.
D
The data are close to the accepted value but are not close to one another.
10

A scientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. Another scientist conducted the same experiment and got similar results.

A
repetition
B
replication
C
precision
D
validity

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