Why do metals rust differently? Scholars experiment with metal combinations in a hands-on activity. They create unique environments with different metals and compare the rate and amount of rust for each.

Concepts

rust, elements, anodes, electrolytes, acidity, corrosion, chemical reactions, cathodes

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Additional Tags

science

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Instructional Ideas

• As an extension, ask pupils to research common metals used for building structures exposed to the elements

Classroom Considerations

• Lab requires a week or more for reactions to take place
• Allow time to collect necessary materials and for set up

Pros

• Provides ideas for extension
• Teaching guide outlines steps for preparing materials

Cons

• None