Science project

Are Artificial Sweeteners as Sweet as Real Sugar?

Research Questions:

  • Are artificial sweeteners just as sweet as real sugar?
  • Do you have to have add more servings of artificial sweetener to get the same level of sweetness from one serving of regular sugar?


  • Sugar-free lemonade mix
  • Real sugar
  • Honey
  • Artificial sweetener
  • Three Pitchers
  • Long spoon for stirring
  • Several drinking cups or glasses
  • Several volunteers
  • Pen or pencil
  • Lab notebook
  • Poster board
  • Markers

Experimental Procedure:

  1. Following the directions on the lemonade mix package, mix together one pitcher of lemonade using regular sugar. Mix another pitcher of lemonade using honey. Mix a third pitcher of lemonade using artificial sweetener.
  2. Ask 6-10 volunteers to taste each kind of lemonade. Record what each person thought of each kind of lemonade. Were they equally sweet? Were some more sweet? Were others less sweet?
  3. If some were more or less sweet, try making new batches of lemonade using more or less sugar, honey or sweetener to taste. Ask your volunteers to taste them again. Did the adjustments make a difference? Record your observations.
  4. Analyze your data. Graph your results on poster board to illustrate your results.

Terms/Concepts: artificial sweetener; sugar substitute


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