››Food Preservation
Grade 5 · EVS
Food Preservation
3 activities · Sort it! · Fill in!
How food spoils, traditional and modern methods — drying, pickling, refrigeration, pasteurisation
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1
Sort each food preservation method — does it work by REMOVING MOISTURE (drying), USING HEAT (cooking/boiling), or USING COLD (refrigerating/freezing)?
1Storing vegetables in a refrigerator
2Sun-drying fish on racks to make dry fish
3Freezing meat to preserve it for weeks
4Drying chillies in the sun to make red chilli powder
5Making jam by boiling fruit with sugar until thick
6Salting and drying raw mangoes to make amchur powder
7Canning vegetables by sealing them in airtight tins after boiling
8Boiling milk to pasteurise it and kill bacteria
Removing moisture (drying/salting)
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Using heat (boiling/cooking)
write sentence numbers here
Using cold (refrigerating/freezing)
write sentence numbers here
2
Sort each food — is it FRESH (needs to be eaten quickly) or PRESERVED (can be stored for a long time)?
1Raw sliced mango
2Sun-dried figs in a sealed jar
3Packed paneer with preservatives in the fridge
4Fresh cow's milk
5Boiled vegetables without salt
6Freshly cooked rice
7Rice stored in an airtight container with a bay leaf
8Mango pickle in oil and salt
Fresh food (short shelf life)
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Preserved food (long shelf life)
write sentence numbers here
3
Fill in the blanks about how food is preserved!
Mango is made by preserving raw mango in oil, salt and spices.
fermentation
pasteurisation
pickle
Jams and jellies are preserved using , which prevents the growth of moulds.
is added to pickles because its acid kills bacteria and moulds.
The process of removing water from food to preserve it is called .
dehydration
pasteurisation
sugar
Storing food at low temperatures to slow bacterial growth is called .
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