Question

daniel wanted to grow cucumbers from seeds. he read that using a heating pad to heat up potting soil could help make seeds germinate, or sprout, faster. daniel wondered whether the temperature of the heating pad would affect how quickly the seeds germinated. daniel prepared two potting trays, each made up of ten small pots of soil. he planted one cucumber seed in each small pot and arranged the potting trays near a sunny window. he set an electric heating pad to 75°f and placed it under one potting tray. he set a second heating pad to 85°f and placed it under the other potting tray. daniel observed the pots daily, and he counted the number of days it took until a seed germinated in each pot. which of the following was a dependent variable in this experiment? the temperature of the heating pad the number of days until a seed germinated

Explanation:

In an experiment, the dependent variable is what is being measured and is affected by the independent variable. Here, Daniel is interested in how the temperature of the heating pad (independent variable) affects the time it takes for seeds to germinate. The time, measured as the number of days until a seed germinated, is what changes based on the heating - pad temperature.

Answer:

the number of days until a seed germinated