Preservative
Interactive Video
•
Science, Chemistry, Health Sciences, Biology
•
6th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
Preservatives are substances used to prevent decomposition or undesirable chemical changes. They can be natural, like sugar or salt, which are used to preserve food, or synthetic compounds that extend the shelf life of medicines and biological samples.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Can you explain the role of sugar and salt as preservatives?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
What are the benefits of extending the shelf life of biological samples?
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