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This semi-ellipsoidal object will automatically stop and spin in its preferred direction; it’s physics in motion! You have to see it to believe it!
This nifty science toy spins only in one direction. When spun in the wrong direction, it will stop, rattle and then spin in reverse. This science wonder is a great tool for endless fun, and the origin of design can be found dating back to Celtic and Egyptian sites in the 19th century. Made from plastic, this science curiosity has a curved side which creates this physics phenomenon.
*Please note: The Rattleback comes in a variety of colours, and we cannot guarantee the colour you will receive.
Recommended for ages six and over. Not suitable for children under three years of age.
Rattleback dimensions: 90 x 18 x 9mm
This product also makes a great classroom teaching resource. This product can be used in classroom activities that align with the Australian Curriculum.
Code
Content Descriptor
Year 7 - ACSSU117
Change to an object’s motion is caused by unbalanced forces, including Earth’s gravitational attraction, acting on the object
Year 8 - ACSSU155
Energy appears in different forms, including movement (kinetic energy), heat and potential energy, and energy transformations and transfers cause change within systems
