In Search of the Perfect Cookie

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Updated on Nov 14, 2012

Grade Level: 6th - 8th; Type: Chemistry


To investigate what type of cookie sheet bakes the best cookies.

Research Questions

  • Does the cookie sheet affect the way cookies bake?
  • Is one type of cookie sheet better for keeping cookies from burning?

Who doesn’t love a warm gooey cookie right from the oven? There are many different factors that go into making the perfect cookie, but for this investigation the baking sheet will be examined.


  • 3 or 4 baking sheets with different coatings such as nonstick, aluminum, insulated, etc.
  • Cookie dough and cookie baking directions
  • Oven
  • Timer
  • Spatula

Experimental Procedure

  1. Gather the necessary materials.
  2. Preheat the oven according to the cookie directions. Prepare each pan in the same way according to the cookie directions.
  3. Fill each tray in the same way with spoonfuls of cookie dough according to cookie directions.
  4. One at a time, place a cookie tray with the cookie dough into the oven. Set timer according to directions. When the timer goes off, immediately remove the cookies from the oven. Allow the cookies to cool.
  5. Repeat step 4 with the other trays of cookie dough making sure to place them on the same rack in the oven and baking for the same amount of time.
  6. Compare the cookies and record your observations.
  7. Analyze the data and draw a conclusion.

Terms/Concepts: teflon: a brand of nonstick coating. Conduct: to transmit heat. Different cookie sheets conduct heat in different ways.


“Different Types of Cookie Sheets Yield Different Tasting Cookies” by Debbie Dragon at “What Types of Cookie Sheets Affect How the Cookies Come Out” by Linda Manes at “Baking and Cookie Sheets” at

Nancy Rogers Bosse has been involved in education for over forty years - first as a student, then as a teacher, and currently as a curriculum developer. For the last fifteen years she has combined a career in freelance curriculum development with parenthood - another important facet of education and probably the most challenging. Nancy lives in Henderson, Nevada with husband and their three teenagers.

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