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 everyday until you find some changes on it. Make this table on a 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. Find out the reason for these changes. From where did the fungus come on the bread? Different kinds of food items spoil due to different reasons. Some foods spoil soon, some stay good for long. List some seasons and conditions in which food spoils quickly. Given below are some food items and some simple methods by which these could be kept fresh for 1-2 days. Match the correct pairs: Food items Methods Milk Put in a bowl and keep the bowl in a container with some water. Cooked rice Wrap in a damp cloth. Green coriander (Dhania) Boil it. Onion, garlic Keep it in a dry open place