videoScienceGrade 1 50 XP

Need a Lift? Try a Pulley!

Jessi and Squeaks just got a new telescope, and they can't wait to check out the night sky! But there's just one problem: it's too heavy to bring up the stairs into the observatory! Join them as they learn about a simple machine that can help them solve their problem: the pulley!

Need a Lift? Try a Pulley! — Science video cover

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