Food Spoilage

Microorganism
Food Spoilage and Preservation
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Slide 1: Slide
BiologySecondary EducationAge 13

This lesson contains 7 slides, with interactive quizzes and text slide.

time-iconLesson duration is: 5 min

Items in this lesson

Microorganism
Food Spoilage and Preservation

Slide 1 - Slide

While returning from the school, Bina ate chaat from a street hawker. When she reached home, she felt ill and complained of stomach ache. What could be the reason?

Slide 2 - Open question

Rita notices the milk she poured on her breakfast cereal is lumpy and tastes sour. What inference should Rita make?

Slide 3 - Open question

Heating of milk to 70 degrees and suddenly cooling it

A
Sterilization
B
Pasteurization
C
Evaporation
D
Condensation

Slide 4 - Quiz


A
Refrigeration
B
Drying
C
Freezing
D
Condensing

Slide 5 - Quiz

Jams, Jellies and Squashes are preserved by

A
Drying
B
Dehydrating
C
Salt
D
sugar

Slide 6 - Quiz

Two common chemical preservatives:
A
Sodium benzoate
B
Sodium Metabisulphite
C
Carbon dioxide
D
Calcium Carbonate

Slide 7 - Quiz