{"product_id":"keva-contraptions-reactions","title":"Keva Contraptions Reactions","description":"\u003cp\u003eGet rolling with an endlessly reconfigurable wooden chain-reaction builder designed to spark hands-on STEM play. This set contains 178 precision-cut pine planks plus dowels, reaction balls, a bell, string, a bowling pin, a toy car and a 16-page idea book with photo projects and quick-start instructions—everything kids need to design ramps, tunnels and clever trigger mechanisms that set off satisfying reactions like ringing a bell or toppling a pin. Stacking and balancing the solid planks teaches proportion, balance and basic physics while encouraging creativity, problem-solving and cooperative play at home or in the classroom. Ages 7+. \u003c\/p\u003e","brand":"MindWare","offers":[{"title":"Default Title","offer_id":42015375327314,"sku":"14100193","price":67.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0286\/1203\/4642\/files\/keva-sup----sup-contraptions-reactions_14100193.jpg?v=1752628522","url":"https:\/\/www.amazeumstore.org\/products\/keva-contraptions-reactions","provider":"Scott Family Amazeum Museum Store","version":"1.0","type":"link"}