Factors to Keep Constant in an Experiment for Reliable Results
What factors should Aziza keep constant throughout her experiment?
a. the shape of the hummingbird feeders
b. the color of the hummingbird feeders
c. the size of the hummingbird feeders
d. the height at which the hummingbird feeders are hung
e. the number of hummingbirds that visit each feeder
f. the kind of hummingbird food placed in each feeder
Answer:
Shape, Size, Height, Type of Food
Aziza is designing an experiment to test whether the color of a hummingbird feeder affects the number of hummingbirds that feed at it. If she wants to ensure the reliability and fairness of her experiment, Aziza should keep the color, size, and type of food constant for each feeder.
The color is the variable that Aziza is testing in her experiment, so she needs to keep other factors constant to accurately measure the impact of color on the number of hummingbirds visiting the feeders. By keeping the shape, size, height, and kind of food the same for each feeder, Aziza can ensure that any differences in the number of hummingbirds visiting each feeder are due to the color of the feeder and not other factors.