Food and nutrients

Illustrating the presence of fats

Illustrating the presence of fats

Slide

Illustrating the presence of fats

Instructions:

Illustrating that walnuts contain fats:

  • Cut a fine sliver of walnut.
  • Place a drop of Sudan Red on the slice of walnut.
  • Look at it under the microscope.

 

The result:

The Sudan colours the fat globules red.