2.2 ASSIGNMENT: Rate of Dissolving Lab (Due April 5)

ASSIGNMENT: Rate of Dissolving Lab (30 points)

Instructions:

For this assignment you will design experiments to test how temperature, surface area, and stirring affect the rate of dissolving. You will need to turn in a lab report to get credit. Your report should include the following items:

• Your hypothesis of what you expect to happen in each experiment.
• A description of how you set up each experiment.
• The data collected from each of the 3 experiments (temperature, stirring, surface area).
• Pictures of your setup and results.
• An explanation of your results.

Some tips for getting started are included below:

• Choose a solute to dissolve in water. Some good ideas you may have around the house would be salt, sugar, alka seltzer tablets, bouillon cubes, food coloring, etc.
• Set up your experiments. Use the thermometer from your science kit to record the temperature of the water. Use a watch or a timer to record how long your solute takes to dissolve.
• Make sure you only change one variable at a time in your experiments.
• Make sure you organize and record your data. You can create your lab report in a Google docs, Google slides, or any other way that you feel would work best.

Submission Instructions:

1. When you have completed your assignment in Google Docs, click Share in the right hand corner

2. Change the sharing setting to Anyone at Mountain Heights Academy can comment. This will allow your teacher to comment on your assignment.

3. Click Copy Link

4. To submit your assignment, return to this page and click Add Submission

5. Paste the link to your Google Doc in the box (cntl+v)

6. Click Save Changes to submit your assignment

After you have completed this assignment, it will be marked as complete with a checkmark after it has been graded by the instructor.