In this Unit, we learned about different kinds of chemical reactions. You will demonstrate your understanding of these concepts by performing an experiment that focuses on chemical reactions between different substances.
First, formulate your hypothesis (Scientists pride themselves on being able to prove themselves wrong. So don’t worry if your hypothesis turns out to be incorrect!) What do you think the reactions will be between the different kinds of candies when they are placed into the different kinds of soda? Record your predictions. Remember to record a hypothesis for each separate type of candy, combined with each different type of soda.
Next, collect all the necessary items for the lab. You may already have these things around your home, or you should be able to get them easily at any store. You will need:
- Mentos candies
- Another type of candy
- Meter stick
- Test tube
Then, carry out the experiment. Make sure you are wearing your safety equipment, and that you are carrying out the experiment in a box or aquarium that will prevent a mess. Place each different type of candy into each different kind of soda and record the reaction that takes place. Be careful, because this may or may not cause a violent chemical reaction that could result in an overflow of soda.
Finally, you are going to compare the predictions you made in your hypothesis to the results you got when you conducted your experiment. Did the experiment go like you planned? If not, why do you think the results were different from your predictions? Why do you think the experiment turned out the way it did? Were there any additional factors that might have influenced the results of the experiment? If you did the experiment again is there anything you would have done differently?
You will complete a lab report to turn in to report your findings. If you need a review on how to prepare a lab report, return to your Unit 1 Project for guidance.
Final Product: Lab report
Your lab report will be made up of four sections. Each section will be between two and five paragraphs. These should be labelled with individual headers: Question and Hypothesis, Experimental Process, Summary, and Analysis.
You will be graded on each section individually. You will be assessed on understanding of the scientific process, the content of your experiment, and the thoughtful development of your ideas. Notice that the Analysis section is weighted heavier than the others – the Analysis section should discuss what your your results mean, and this is the most important part of your experiment.
15% of your grade will be on grammar, mechanics, and polish. This will include spelling, punctuation, sentence structure, clarity of writing, and organization for ease of reading.
- An introduction describing your question and initial hypothesis (20%)
- A description of your experimental process (20%)
- A summary of your results (20%)
- An analysis of your results (25%)
You may use online resources to help you create a question or understand your results. This is completely acceptable, as long as you appropriately cite your sources. This paper must be written in APA style, in at least 500 words with strong descriptive details. Refer to the following website for additional help:
“Make sure to show your work and use the correct amount of significant figures. “