Question

18 A group of scientists collects samples of rainwater every week and tests

the acidity. They then use the rainwater collected to water tomato plants
that they grow in their lab. They record the height of the plants each
week after the plants are watered, and the results are recorded into the
table below.
Plant 1 - low acid rainwater
Plant 2-tap water
Plant 3- high acid rainwater
Week 1
Height (cm)
4.0
3.5
4.0
Week 2
Height (cm)
4.5
4.0
4.0
Week 3
Height (cm)
5.0
6.0
5.0
Week 4
Height (cm)
5.5
9.0
6.0
The scientists conclude that tap water is the best for tomato plants.
However, they decide to ask another group of scientists to do their
experiment over. Why would they want to do this?
F. To introduce other scientists as a new variable, since all of the plants
grow.
G. To show that the experiment can be replicated.
H. To make a control group of scientists, to compare the data against.
1.
To prove that the study can have multiple trials and produce the
same results.

Answer 1

The correct answer is G. To show that the experiment can be replicated.

Replication is a fundamental principle of the scientific method, which requires that experiments be repeatable and that the results obtained are consistent and reproducible. By having another group of scientists perform the same experiment, the original group can verify the reliability of their findings and ensure that their results are not a fluke or due to chance. This helps to increase the credibility of their research and the accuracy of their conclusions.