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प्रश्न
Find out the reason for these changes. From where did the fungus come on the bread?
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उत्तर
These changes occurred because of rotting of bread. The spores of fungus are present in the air. When they get a moist surface and food, they begin to grow.
APPEARS IN
संबंधित प्रश्न
How did Aman know that the potato sabzi had got spoilt?
Have you ever seen some food that has got spoilt? How did you know that it was spoiled?
Look in your kitchen and write down names of food items that
| can get spoilt in 2-3 days | ______ | ______ | ______ |
| can be kept for a week | ______ | ______ | ______ |
| would not spoil till one month | ______ | ______ | ______ |
Look at your friend’s list and discuss in the class.
The whole class can do this experiment together. Take a piece of bread or roti. Sprinkle a few drops of water on it, and put it in a box. Close the box. See the bread or roti every day until you find some changes on it.
Make this table on chart paper and put it up in the classroom. Fill up the chart every day after discussing the changes seen.
| Day | Changes in the bread or roti | |||
| By touch | By smell |
By looking through hand lens |
By colour | |
| 1. | ||||
| 2. | ||||
| 3. | ||||
| 4. | ||||
| 5. | ||||
| 6. | ||||
Why was sugar and jaggery mixed into the mango pulp and dried in the sun?
What things are made in your house from ripe and unripe mangoes?
Make a list of all the different types of pickles that you know about, and share with your friends.
How are these things made in your house?
- Papad
- Chutney
- Badiyan
- Sauce
Glass jars and bottles are dried well in the sun before filling them with pickles. Why is this done? Do you remember what happened to the bread in the experiment?
