Skittles: Taste the Rainbow Lab Writing the Perfect Lab Report Skittles: Taste the Rainbow • Research Problem: Does the flavor of a Skittle reflect the outer color? What do we need to know? • What is a “blind” taste test? • What is a “double blind” taste test? • What colors are there in original skittles? • What are the flavors of the colors? • Example: http://www.youtube.com/watch?v=TunJoQmeisA • What not to do: http://www.youtube.com/watch?v=_UzU7sQFZKo&feature=results_video &playnext=1&list=PLE88667B361DA7076 • Real Life Example: http://www.youtube.com/watch?v=OX1krN934dI The Rainbow Colors and Flavors Google the colors and flavors of Original Skittles • Orange = Orange • Yellow = Lemon • Green = Green Apple • Red = Strawberry • Purple = Grape Experiment Ideas • Think of a minimum of 3 experiment ideas • Remember, our research question is: Does the flavor of a Skittle reflect the outer color? Skittles: Taste the Rainbow • Chose one and SUMMARIZE • Don’t write anything down yet. Let’s discuss and agree on a procedure. • We will be combining class data Variables • Manipulated variable: • The color of the skittle • Responding variable: • If the person gets the color right • Control variables: • Same skittles, all blind-folded, same # of skittles, rinse water after each taste • Control Group Manufacturers suggestion of flavor • Repeated Trials: • X10 Hypothesis • If _________________, then______________, (manipulated var.) (responding var.) because___________. • Make sure it answers the research question: • Does the flavor of a Skittle reflect the outer color? Procedure • Think back to the ice-cream sundae procedure: THAT’S the level of detail we need. • (Smart Board directions) Data • You & Partner are responsible for 10 trials • We will be combining the class data • What is your manipulated variable? • What is your responding variable? Graphing • You will graph the class data. • Make sure your graph includes: • Title • Labeled X and Y axis • And is spread out • Bar chart • Key/Legend Conclusion Look at your blue checklist: ____Did you restate your hypothesis? ____Did you state if you hypothesis was “supported” or “not supported”? ____Did you include your data to back up your claim? Reflection (#4) ____Did you report any problems or errors you had AND suggest improvements for future experiments?