Question

evaluate the experiment design explained. identify each part of the experiment by matching the correct terms.
you are wondering about the effectiveness of a fertilizer on pea plant growth. you set up 3 identical pea plant pots, they are the same size and the plants are the same age. they are given the same soil and the same amount of water.
pot 1 gets no fertilizer, pot 2 gets 5 grams of fertilizer, and pot 3 gets 10 grams of fertilizer.
after a few weeks you measure the height of the plants. you collect and analyze data, finding that the pot 3 plant was significantly taller than the other two pots.
independent variable
choose
amount of fertilizer
plant height
fertilizer
no fertilizer
dependent variable
choose
control treatment
choose
experimental treatment
choose

Explanation:

Step1: Define independent variable

The factor being changed is amount of fertilizer.

Step2: Define dependent variable

The measured result is plant height.

Step3: Define control treatment

Pot 1 with no fertilizer is control.

Step4: Define experimental treatment

Pots 2 and 3 with fertilizer are experimental.

Answer:

Independent variable: amount of fertilizer
Dependent variable: plant height
Control treatment: no fertilizer
Experimental treatment: 5 grams of fertilizer, 10 grams of fertilizer