Question

question 4
identify the independent, dependent, and controlled variables in your investigation.
which variable will you change and which variables will you keep the same?
amount of water temperature amount of fertilizer amount of light
which variable will you measure?
plant height number of tomatoes average tomato mass

Explanation:

Step1: Identify independent variable

The variable we change is the independent variable. Here, we can choose one from the "will change" options, for example, amount of water.

Step2: Identify dependent variable

The variable we measure is the dependent variable. Let's say we choose plant height.

Step3: Identify controlled variables

The variables we keep the same are controlled variables. We can choose temperature, amount of fertilizer, amount of light.

Answer:

I will change: amount of water
I will measure: plant height
I will keep the same: temperature, amount of fertilizer, amount of light