ALKA-SELTZER Experiment Quiz

In the ALKA-SELTZER experiment, fill in the following: Control group - __the water__________________

• Control group - the water without tablets

• Control group - the water with tablets

• Control group - the water with sugar

• Control group - the water with salt

In the ALKA-SELTZER experiment, fill in the following: Experimental Group- __the tablets___________

• Experimental Group - the water with tablets

• Experimental Group - the empty container

• Experimental Group - the control group

• Experimental Group - the observation notes

In the ALKA-SELTZER experiment, fill in the following: Independent Variable- ______________

• Independent Variable - presence of tablets

• Independent Variable - temperature of water

• Independent Variable - size of the container

• Independent Variable - amount of water

In the ALKA-SELTZER experiment, fill in the following: Dependent Variable- ______________

• Dependent Variable - reaction time or effect

• Dependent Variable - temperature

• Dependent Variable - color change

• Dependent Variable - pH level

In the ALKA-SELTZER experiment, fill in the following: (2) constants- ____________________

• Constants - amount of water, temperature

• Constants - type of container, stirring speed

• Constants - brand of Alka-Seltzer, time of day

• Constants - color of the solution, room lighting

In the ALKA-SELTZER experiment, was this experiment a CONTROLLED EXPERIMENT? WHY or WHY NOT?

• Yes, because all variables were controlled.

• No, because not all variables were controlled.

• Yes, because it was conducted in a laboratory.

• No, because it was an observational study.

Control group: ______________________

• Right knee (uncovered)

• Left knee (uncovered)

• Right arm (uncovered)

• Left arm (uncovered)

Independent Variable: ________________

• Use of a bandaid

• Color of the bandaid

• Size of the bandaid

• Brand of the bandaid

Dependent Variable: ________________

• Healing of the cut

• Growth of plants

• Speed of a car

• Temperature of water

(2) Constants: ______________________

• Type of cut, duration of experiment

• Temperature, pressure

• Volume, mass

• Speed, acceleration