A blackboard with the words Science and H2O written on it in white chalk.

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Images of chalk words on a blackboard.

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Size: 4256px × 2831px
Location: London, Ontario, Canada.
Photo credit: © Jonny White / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: blackboard, chalk, collage, education, element, h2o, learn, learning, school, science, subject, teach, teaching, water, word, written