Science Enhanced S&S Biology - Virginia Department of ...

Students could test the time needed to change and/or the exact color change. Procedure. Safety Note: Students must wear protective eyewear! 1. Have the students number the containers 1 through 4 and fill each about 4/5 full with aquarium water. 2. Have students add enough of the bromthymol blue solution (2 to 3 mL) to each bottle to obtain a ... ................
................