Lesson 5 of 10
When food spoils
Show on a big screenTwo slices of cut mango. One is kept in a steel dabba on the shelf. One is kept in the fridge.
Step 1 of 4
- Two slices of the same mango.
- One on the shelf. One in the fridge.
- Some days later, the shelf slice has fuzzy patches.
- The fridge slice has far fewer. Cold slows the microbes.
The rule
Food often spoils when microbes grow in it. The fuzzy growth is made of microbes. Moisture means wetness. Damp means a little wet.
Microbes grow on food. Warmth and moisture make them grow faster. Cold makes them grow slower. It does not kill most of them.
| Where the food is | What happens |
|---|---|
| Warm and damp | Microbes grow fast |
| In a fridge | Microbes grow slowly |
Slide the days. Compare the shelf and the fridge.
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Try the lab to finish this lesson.