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Show pictures of footprints being left in the mud (Note: kids in cities might not have a lot of experience with footprints).
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Technology example: A footprint is leaving a comment on a YouTube video because other people can see this.
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These are immediately visible to other people.
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Explain that fingerprints aren’t easily seen, but can lead back to you! You can remind students that special tools are used to uncover fingerprints.
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Technology example: A fingerprint is a cookie being stored on your computer. Another is your computer recording your web history.
- They aren’t immediately visible, but if someone wants to see if you were there they can find out!