Magnetic Marbles Tub of 100

No, and the supplier says so plainly: not suitable for children under 8, adult supervision at all times, not a toy, and not intended for early learning centres. Two or more small magnets swallowed separately can attract through the bowel wall and cause a perforation - that is a surgical emergency. For under-8s, buy the large ferrite block magnet or the giant horseshoe instead.

Chains, towers, and predict-then-test experiments across a whole class at once. A hundred is the number that lets every student hold a few rather than watching one demonstration.

So you can colour-code an experiment. All the reds facing one way and all the blues the other gets the idea of poles across without anyone drawing a field diagram.

No - they are plastic-cased spheres with magnets inside. They will not work in a marble run and they are not for craft. They are a science resource.

In the tub they come in, counted back in at the end of the lesson. With magnets that carry an ingestion warning, a count-in and count-out is not bureaucracy - it is the control.

Delivery time depends on your location, the size of your order, and the shipping option selected at checkout. For in-stock items, standard metro delivery in QLD, NSW and VIC is usually 1 to 7 business days. South Australia, Tasmania, Western Australia and the Northern Territory are generally 3 to 12 business days. Express delivery for eligible parcels under 3kg is usually 1 to 4 business days in QLD, NSW, ACT and VIC. Delivery estimates apply to in-stock items only and may vary due to carrier conditions or delays.

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