Episode
How Do Bar Codes Work?
- Published
- May 11, 2026
- Duration seconds
- 646
- Processing state
not_requested
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Summary
In this episode, we learn how bar codes help grocery store scanners know exactly what item you are buying. We discover how black bars and white spaces make a pattern and how the store computer matches the scanned number to the right item and price! Curious Kids Every Day is a daily, interactive podcast that respects your child's intelligence and curiosity. I created this to be a show I would be happy to have my kids listen to. Five Reasons to join the Curious Kids Club! SupportCuriousKids.com Your curious kids get a shout out on their birthdays! Ad-Free Podcast Feed Activity sheets for every new episode of the show Weekly episode schedule so you know what topics are coming up Weekly newsletters so you never miss anything! Want to submit a question for the show? Go to CuriousKidsEveryDay.com! I'll also send you a free printable with activity ideas that don't involve screens. Those are the best kinds of adventures to have!