3. Acids and bases – 3.5 What effect does acid have on teeth? (teacher instructions) © Siemens Stiftung 2022 CC BY-SA 4.0 international

3. Acids and bases – 3.5 What effect does acid have on teeth? (teacher instructions)

Text

Experimentation instructions:
Background information on the content and practical information on conducting the “What effect does acid have on teeth?" experiment.

Available in: English
Type of media: Text
Available as:
PDF (169.3 kByte) DOC (224.5 kByte)
Last update: 2022-10-24
License:

This medium is made available under a CC BY-SA 4.0 international license.

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How to reference this medium
Media package:
Vocational Orientation – 3. Acids and bases
Description:
Tooth enamel is the hardest material in our body, but very sensitive to acids. Acids are ingested with sour drinks or food or formed from sugar by bacteria in our mouth. Eggshells are made of a similar material as the teeth. In a model experiment with eggshells we are able to demonstrate how acid acts on teeth.
Eggshell consists of calcium carbonate which reacts with acids to form mostly carbon dioxide (forms bubbles) and soluble calcium acetate. After a few hours the shell has “disappeared”.

One item deals with „Technical application and vocational orientation“.
Related media:
3. Acids and bases – 3.5 What effect does acid have on teeth? (student instructions) (Text)
Learning resource type:
Experiment
Subjects:
Biology; Chemistry
Grade levels:
Grade 7 to 9; Grade 10 to 13
School types:
Middle/high school; Vocational training
Keywords:
Acids; Agriculture; Base (chemistry); Medicine (medical science)
Bibliography:
Siemens Stiftung Media Portal
Author:
Dieter Arnold
Rights holder:
© Siemens Stiftung 2022
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