Chocolate Cookie Lab Investigation
Are all chocolate chip cookies the same in size, weight and the number of chocolate chips?
Purpose of this lab: to introduce and follow the scientific method process through an investigative format.
Hypothesis: Make a hypothesis about what you think the weight, diameter, and circumference of the cookie will be. Also make a hypothesis for the total number of chocolate chips and the weight of the chips will be.
Materials: Each group of students (2) will share one cookie for this experiment. You will also need to use a ruler, string, triple beam balance and a toothpick.
Procedure: Step 1 you will measure the diameter and circumference of the cookie with a piece of string and a ruler. You then will measure the weight/mass of the cookie using the triple beam balance. Report your findings to Mr. Conklin so he can post them for the entire class to record.
Step 2 you will “dissect” your cookie using a toothpick and your fingers to remove all the chocolate chips. Count all the chips and then using the triple beam balance, measure the mass of the chips. Once again, report your findings to Mr. Conklin so he can post them for the entire class to record.
Data: You must complete the data table provided by Mr. Conklin and copy down all the other group’s data from the overhead. Then calculate the mean, median, mode and range for each column.
Conclusion/Analysis: Each group of students (2) will write or type a report explaining and describing the entire process of this lab. 2 graphs must be in the report as well. The following format must be followed:
Paragraph #1 Introduction
What was the question??? State the purpose of this investigation. What was your hypothesis for each group/column-circumference, diameter, cookie weight, # of chips and chip weight. What were your actual results for your group’s cookie?
Paragraph #2 Number of Chips
What was the procedure in finding out how many chips were in the cookie? What were the mean, median, mode of the class? Was there any unusual information about any of the other groups or your group’s cookie? How did your cookie compare to the class?
Paragraph #3 Cookie Weight
What was the procedure in finding out the weight of the cookie? What were the mean, median, mode of the class? Was there any unusual information about any of the other group’s or your group’s cookie? How did your cookie compare to the class?
Paragraph #4 Chip Weight
What was the procedure in finding out the weight of the chips in the cookie? What were the mean, median, mode of the class? Was there any unusual information about any of the other group’s or your group’s cookie? How did your cookie compare to the class?
Paragraph #5 Diameter
What was the procedure in finding out the diameter of the cookie? What were the mean, median, mode of the class? Was there any unusual information about any of the other group’s or your group’s cookie? How did your cookie compare to the class?
Paragraph #6 Circumference
What was the procedure in finding out the circumference? What were the mean, median, mode of the class? Was there any unusual information about any of the other group’s or your group’s cookie? How did your cookie compare to the class?
Paragraph #7 Conclusion
What were your actual results for your group’s cookie? Were the class’s cookies similar or were they different? Restate your hypothesis for each category of your cookie and draw a conclusion from your data table. Be sure to include the numbers that you got for you cookie to support your hypothesis.