Materials

18 curiosities answered in Everyday Objects.

why do velcro stick when wet?

why do glue dry when wet?

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why do magnets stick to refrigerators when cooled?

why do plastic wrap cling?

why do plastic wrap cling over time?

why do zippers snag when heated?

why do velcro stick when cooled?

why do metal feel cold to the touch over time?

why do rubber bands stretch when wet?

why do wood feel warmer over time?

why do velcro stick?

why do glass shatter?

why do pencils write over time?

why do zippers snag when cooled?

why do velcro stick over time?

why do pencils write?

why do zippers snag when wet?

why do glass shatter over time?