Aisha wonders whether wind or water causes the most erosion. She set up an experiment in which she used a watering can to pour water down a pile of dirt. She then used a fan to blow wind on a second pile of dirt that is the exact same shape and size as the first pile of dirt. Aisha then measured how the height of the dirt piles changed. She also drew pictures of how their shape changed. In this experiment, what was the outcome variable (dependent variable)? A.
the height and shape of the dirt piles
B.
the tools used to measure the dirt piles
C.
the agent of erosion applied to the dirt piles
D.
the time the dirt piles were eroded away
Water cause more erosion over time
The dependent variable in this experiment was the size of the dirt piles (erosion).
The correct answer is "The height and shape of the dirt piles"
Explanation:
A dependent variable is a variable in an experiment that is passively observed. The dependent variable is affected by the independent variable.
The height of the dirt piles.
The dependent variable should be how the height and shape changed
The height of the dirt piles