Step-by-step experiments with simple machines

Briefly introduces children to simple machines and the scientific method, and includes four simple experiments that help readers explore simple machines.

Child's World
2012
9781609735869
book
Lexile: 
530

Holdings

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85782745886112330121670191790PITR389PITR28390621.8 Hag621.815798937721736518457
117419648570492301121670191790EIMS165EIMS202238621.8 HAG621.815814652241736518457
270171261968052376121670191790DUE154DNE0042373621.8 HAG621.816377825731736800991