Experiment No. 19
Question: How can you discover if food contains fat?
Experiments: To test for fat.
You will need:
A piece of brown paper,
a sample of food – butter.
1. We rubbed our food sample
(butter) with brown paper.
2. Then we waited and observed the effect that the food had on the brown paper.
3. We recorded the results.
The butter stained the brown paper and the stain was see-through – this type of stain on the brown paper is called a translucent stain. The stain would not come off.
1. If there is a permanent
translucent stain on the brown paper then fat is present.
2. If there is no stain or a stain that dries away then there is no fat present.
Sixth Class Experiments