Plants respond to their environment in many different ways. Design a controlled experiment to test the effect of one environmental factor (such as light, acidity of precipitation, etc.) on some aspect of plant growth. In your experimental design be sure to:
Part A: State the hypothesis, making sure to identify what you are testing.
Part B: List the steps of the procedure.
Part C: Identify the independent and dependent variables in the experiment.

Aspect of Plant Growth Used: Light.
Hypothesis: If a plant is provided with little to no light, then it will fail to grow.

Independent: The amount of light (you provide your plant with).
Dependent: The growth of the plant.

STEPS:
1. Plant three of the same plant in the same conditions (ex: pot, soil, water levels, seed).
2. Label them (ex: plant a, plant b, plant c).
3. Put one of your plants in a dark closet.
4. Put another one of your plants in a place where it occasionally gets light, maybe somewhere in the center of a room a fair distance from a window.
5. Put your last plant where it will be supplied with plenty of light, preferably within your house right beneath or in front of a large window.
6. As the days pass, continue to water and treat each plant the same. Record the growth of each plant.
7. After a week of doing the same thing, look over your data and understand which plant has grown and which plant has not.

Result: The plant put in the closet should have died due to lack of light, proving light to be a significant aspect in plant growth. The plant put in minimal lighting should have failed to grow or seems to be struggling to grow, proving just how important sunlight is to a plant. The plant in front of a window should have started sprouting and shows signs of growing excellently.

FOR FUTURE REFERENCE: in case the reason you put off doing this assignment was genuinely because you were confused, remember that independent variables are the ones YOU change. Dependent variables are the results and things you did not try and get. A cute way to remember is draw two people or objects with faces in your head. There is one that says "independent" on his chest. He says "I'm independent! You can't tell me what to do." The other one says dependent and they say, "I'm dependent. Everything you do affects me." Maybe it won't help, but I hope you do not fail this assignment.

annyksl annyksl · Answer 2 · 2021-10-14T15:26:38+02:00

The question above wants to assess your ability to establish scientific research. For that reason, I can't write the experiment for you, but I'll show you how to write it.

A controlled experiment is one where scientists analyze hypotheses and cause-and-effect relationships between two elements. Knowing this, you can write your experiment as follows:

Establish a Hypothesis: A hypothesis is an assumption that the scientist believes is correct and that will be tested during the experiment.

An example of a hypothesis might be: Soil with large amounts of aluminum impair the growth of bean plants.

List the steps of the experiment: You will show how the experiment will be set up, managed, and evaluated.

Example: Pots with soil containing different levels of aluminum will be used. In each pot will be planted two bean seeds. The pots will be watered regularly for 400 days, after which the bean plants will be weighed and measured, both the aerial part and the root. One of the pots will be kept with non-aluminum soil so that comparisons can be made. Eleven pots will be used.

Define dependent and independent variables: Independent variables are those that influence an observable result. Dependent variables are those that can be influenced and have measurable results.

Example: The independent variable is the amount of aluminum in the soil. the dependent variable is the plant growth rate.

More information:

https://brainly.com/question/4083847?referrer=searchResults