food tests

• how to produce a food sample

  1 . get a piece of food and break it up using a pestle and mortar

  2. transfer the ground up food to a beaker and add some distilled water

  3. stir the mixture well with a glass rod to dissolve some of the food.

  4. filter the solution using a funnel lined with filter paper to get rid of the solid bits of food.
• M Iodine Test


  A mixture of potassium iodide and M iodine turns blue-black if starch is present
• Iodine Test


  A drop of iodine solution turns blue-black if starch is present
• Benedict's Test


  A drop of Benedict's solution turns green or blue if starch is present