The independent variable in this experiment is the amount of water. This is the factor that the student is changing to test its effect on the plants.
Use the scenario to the question
A student decides to test the effect of watering on plants. She chooses 6 tomato plants and places all of them in the same parts of a garden with plenty of space between them. They get the same amount of sunlight and the same amount of fertilizer each day. She gives each plant a different sound of water, with the first plant getting now water an the others getting 200 ML, 400 ML, 600, ML, 800 ML, and 1,000 ML. She records the total height of the plants each day for 3 weeks.
What is the independent variable in this experiment?
Amount of water
Sun exposure
Amount of fertilizer
Plant height
1 answer