Question

1. you are trying to grow seeds. you water the seeds with different amounts of water for 3 weeks. at the end of three weeks, you measure how much they have grown. independent- dependent- control/constant-

Explanation:

The independent variable is what is changed in an experiment. Here, the amount of water given to seeds is changed. The dependent variable is what is measured as a result of the change in the independent variable, which is the growth of the seeds. The control/constant is something that stays the same throughout the experiment, and it's not clear what "The 20x" means in this context, but it should be a factor that remains unchanged like the type of seeds, pot, soil type etc.

Answer:

Independent - Amount of water given to seeds
Dependent - Growth of the seeds
Control/constant - (Incorrect as "The 20x" is unclear; should be factors like type of seeds, pot, soil etc.)