Name: The Tree House
Uploaded: 2017-10-27T02:45:48.000Z
Duration: 25 min 57 s
Description: Sid discovers a pulley is the perfect machine to lift heavy things up to high places.

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Sid wonders how he can lift his heavy box of toys way up to his treehouse. After investigating at school, Sid discovers that a pulley is the perfect simple machine to help lift heavy things up to high places, like a tree house!

Sid discovers a pulley is the perfect machine to lift heavy things up to high places.