Raya is a gardening enthusiast who is looking to buy a new house. She wonders whether her house plants will grow well if she buys an
apartment on a higher floor. She remembers that her friend Jenn also has a small garden on her balcony, and her plants seem healthy.
Raya conducts an experiment to study the effect of altitude on the growth of plants. She gathers plant samples and places them on five different
floors of a 20-story building. Identify the basic components of Raya's experiment, including the confounding variable.
observation
hypothesis
relationship to be tested
dependent variable
independent variable
confounding variable
eliminating a confounding variable
Raya measures the
growth rate of plants.

Question

14-09-2021
Biology

contestada

Raya is a gardening enthusiast who is looking to buy a new house. She wonders whether her house plants will grow well if she buys an
apartment on a higher floor. She remembers that her friend Jenn also has a small garden on her balcony, and her plants seem healthy.
Raya conducts an experiment to study the effect of altitude on the growth of plants. She gathers plant samples and places them on five different
floors of a 20-story building. Identify the basic components of Raya's experiment, including the confounding variable.
observation
hypothesis
relationship to be tested
dependent variable
independent variable
confounding variable
eliminating a confounding variable
Raya measures the
growth rate of plants.

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somethingamazing9 somethingamazing9 · Answer 1 · 2021-09-22T14:50:23+02:00

Answer: Raya measured the growth of the plants. -> Dependent variable

Raya waters different plant samples at

different times of the day-> confounding variable

Raya formulates the possible explanation that plants grow faster when exposed to sunlight at higher altitudes-> hypothesis

Raya uses the same fertilizer for all of her plant samples-> eliminating a confounding variable

Raya plans to compare plant growth rate against the altitude-> relationship to be tested

Raya notices that plants seem to grow better on high-rise balconies.-> observation

Raya places each plant sample on a different floor of the building. -> eliminating a confounding variable

Explanation: I got it right on the test sorry I didn’t see it earlier I would have answered earlier. But I hope this helps you and anyone else

aliasger2709 aliasger2709 · Answer 2 · 2022-08-20T07:19:22+02:00

Raya's experimental design included the hypothesis of increased plant growth at higher altitudes, where she established the relationship between plant growth and altitude levels.

What is an experimental design?

An experimental design is a setup used to research the hypothesis of the subject matter. Raya's hypothesis was about the faster plant growth rate at higher altitudes and sunlight. It was to test the relation between the altitude and the growth of the plants.

The dependent variable was the measuring of the plant growth and the confounding variable was building height or the altitude and watering plant samples at different intervals of the day.

The placing of the plants on different floors of the building can eliminate the confounding variable. It was concluded that plant samples placed at high-rise balconies showed better growth.

Therefore, the altitude and sunlight affect plant growth.

Learn more about experimental design here:

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