{"product_id":"magnetic-slime-kit-iron-responsive-polymer-science","title":"Magnetic Slime Kit — Iron-Responsive Polymer Science","description":"\u003cp\u003e\u003cstrong\u003eSlime that chases magnets. Hands-on ferrofluid — iron particles in a polymer matrix that responds to magnetic fields.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRegular slime is a cross-linked polymer — PVA chains connected by borate ions into a viscoelastic gel. Magnetic slime adds fine iron powder to this matrix, making the entire gel magnetically responsive. Bring a neodymium magnet close and the slime extends toward it, flows around it, and slowly engulfs it. The iron particles align with the external field, generating a net magnetization that the entire material responds to — the same physics as the Rosensweig instability in true ferrofluid, but at a scale you can touch and shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e Iron oxide powder · PVA solution · Activator · 2 neodymium disc magnets · Mixing gloves · Experiment guide\u003c\/p\u003e\u003cp\u003eAges 8+. Adult supervision recommended. Ships within 7–14 business days.\u003c\/p\u003e","brand":"Golden Physics Project","offers":[{"title":"Default Title","offer_id":54805585592612,"sku":"GPP-MAG-SLIME","price":22.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/2879\/9524\/files\/D0_9C_D0_B0_D0_B3_D0_BD_D0_B8_D1_82_D0_B5_D0_BD__D0_98_D0_BD_D1_82_D0_B5_D0_BB_D0_B8_D0_B3_D0_B5_D0_BD_D1_82_D0_B5_D0_BD__D0_BF_D0_BB_D0_B0_D1_81_D1_82_D0_B8_D0_BB_D0_B8_D0_BD.jpg?v=1781381711","url":"https:\/\/shop.goldenphysics.org\/products\/magnetic-slime-kit-iron-responsive-polymer-science","provider":"Golden Physics Project","version":"1.0","type":"link"}