Question

In this experiment, you will first change the temperature of the water and determine its effect on the time it takes the tablet to dissolve. Then you will alter the size of the antacid tablet and determine its effect on the time it takes the tablet to dissolve. In the space below, write a scientific question that you will answer by doing this experiment.

when the glow stick is bent two substances inside the grow stick Lumino and hydrogen peroxide come into contact will reaction occurs.it will the reusing energy in the form light temperature has effect on the chemical
Sample Response: How do the factors of temperature and surface area affect the rate of chemical reactions?

Which of the following did you include in your question? Check all that apply.

independent variable 1: temperature of the water
independent variable 2: surface area of the tablet
dependent variable: reaction time
format: What are the effects of X and Y on Z?

Answer 1

All four.

- Independent variable 1: temperature of the water — included (temperature).
- Independent variable 2: surface area of the tablet — included (surface area).
- Dependent variable: reaction time — included (rate of the chemical reaction).
- Format: What are the effects of X and Y on Z? — matches the question format.