Question

day 1: download or print the pdf for this lesson and follow along in the notice and wonder science experiment lab report as instructed. after completing todays tasks in the lab report, come back and answer the practice questions for day 1. what is the control in this science experiment? ☐ there is not a control in this experiment. ☐ the color of the food coloring is the control. ☐ the type of salt is the control. ☐ the size of the crystals is the control.

Explanation:

In a science experiment, a control is a group or condition kept constant to compare with the experimental group. Here, the size of crystals (a constant factor) is likely the control, as color (variable) and salt type (variable) are manipulated, and the option saying no control is incorrect.

Answer:

D. The size of the crystals is the control.