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ratelena [41]
2 years ago
13

In an experiment to determine the effect of different brands of fertilizer on the rate of plant growth, what are 4 variables tha

t would need to be controlled?
Chemistry
1 answer:
kherson [118]2 years ago
5 0

The variables to control in an experiment to determine the effect of different fertilizers on the rate of plant growth include soil composition, temperature, water, and light.

<h3>What are controlled variables?</h3>

The expression controlled variables makes reference to experimental conditions that must be equal or constant between experimental groups in order to obtain better comparisons when collecting results.

In conclusion, The variables to control in an experiment to determine the effect of different fertilizers on the rate of plant growth include soil composition, temperature, water, and light.

Learn more about controlled variables here:

brainly.com/question/17328868

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a student investigated the factors that affect math grades. Which statement from the lab report best represents a conclusion for
jarptica [38.1K]

A statement from the laboratory report which best represents a conclusion for this investigation is that: D. students who spend less time studying after school get lower math grade.

<h3>What is a research?</h3>

A research is also referred to a study and it can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause), in order to determine or measure the dependent variable (the effect) and reach a logical conclusion with results.

<h3>What is an analytical research report?</h3>

An analytical research report can be defined as a well-crafted and written document that is typically used by a researcher to display a detailed analysis of the information which are obtained through a particular research method.

In this scenario, we can infer and logically deduce that a statement from the laboratory report which best represents a conclusion for this investigation is that the group of students who spend less time studying after school would get lower math grade.

Read more on analytical research here: brainly.com/question/17137042

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4 0
2 years ago
. Is it possible to have an oxygen atom with 8 protons and another oxygen atom with 9 protons? Explain.
Scorpion4ik [409]

Answer:

no

Explanation:

changing the number of protons will change the atomic number, and if the atomic number is changed, it will become a different element. if you give oxygen 9 protons, it would no longer be oxygen, it would be fluoride.

3 0
3 years ago
Increasing concentration of substances in a chemical reaction will
ivann1987 [24]
I believe it should be A. Increased reaction rate due to the increased number of collisions between particles.
4 0
4 years ago
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What is the name of group 6a,7a,and 8a
vodka [1.7K]

Answer:

Refering to Chemistry,

The Group names are:

Group 6A: Chalcogens

Group 7A: Halogens

Group 8A: Noble/Inert Gasses

8 0
3 years ago
Please help me !!!!!
Margarita [4]
I cant read it, please make it focused
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