Siemens Stiftung

Acids and bases in foods

Interactive exercise:
Which products are acidic, basic, or neutral or have an acidic, basic, or neutral reaction?

Twelve everyday products are to be classified with respect to their properties as acidic (a), basic (b), or neutral (n). The corresponding letters can be dragged to the right positions. The exercise can also be completed by hand on the interactive whiteboard.

Information and ideas:
The students can collect and classify other everyday products. For which of the three categories - acid, base, neutral - is it most difficult to find examples?