Fehling's Test: Which food samples contain reducing sugars?

Learn how to perform Fehling’s test for reducing sugars on a variety of food samples. Predict which samples contain reducing sugars and find out how your predictions compare to your results!

  • High School
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About This Simulation

Practice makes perfect! In this simulation you will learn how to perform Fehling’s test for reducing sugars on a variety of food samples. You will use your existing knowledge of food macromolecules to predict which food samples contain reducing sugars. You will then process the samples through Fehling’s test, with the help of Dr. One’s step by step guidance, and document your results. How will your predictions compare to your results? Make a prediction Get equipped for Fehling’s test by exploring and assembling the apparatus on the workbench. Now that you’re set up, use your existing knowledge to predict which food samples will contain reducing sugars. Don’t be afraid to make mistakes. Later you will compare your predictions and results. Perform Fehling’s test Learn how to process food samples through Fehling’s test as if you were in a lab! Dr. One will guide you step by step to process your controls and food samples through Fehling’s test. Check out the colorful results of Fehling’s test and use your controls to determine which result is positive. Is it the brick-red precipitate or the blue solution? Combine the theory of Fehling’s test with your observations to interpret your results and discover which food samples contain reducing sugars. Results vs. Prediction Finally, compare your results to the predictions you made earlier. Did you know which food samples contained reducing sugars? Are there any results that are surprising?

Explore Fehling's Test: Which food samples contain reducing sugars? Virtual Lab Simulation

Find out more about the apparatus by tapping as many items as you like to hear more information.
Predict which food samples will give a positive result for reducing sugars, and the appearance of the result.
Prepare the Fehling's reagent and add your samples ready for heating.
Observe the change in the results and determine which one is positive.

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