Question

identifying variables assignment
for each scenario, identify the independent variable (iv), the dependent variable (dv), and one constant (cons). be specific. answers that are too vague will not be accepted.
scenario 1:
a test was done to determine if older compost helped plants grow more than newer compost. the height of different groups of bean plants was measured over time after they either had old compost, new compost, or no compost added to their soil.
iv:
dv:
cons:

Explanation:

The independent variable is what is changed in an experiment. Here, the type of compost (old, new, none) is being changed. The dependent variable is what is measured as a result of the change in the independent variable, which is the height of the bean - plants. A constant could be something that remains the same for all groups, like the type of bean - plants used.

Answer:

IV: Type of compost (old compost, new compost, no compost)
DV: Height of bean plants
Cons: Type of bean plants