The very first barcode ever scanned in a shop was on a pack of gum.
That happened many years ago. Now barcodes are on nearly everything we buy.
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A grocery store sells food like fruits, vegetables, milk, and bread.
Cold foods are kept in fridges and freezers at the store.
A shopping cart helps you carry lots of food around the store.
The stripes in a barcode tell the checkout machine the price.
Grocery stores group similar foods together on shelves called aisles.