{"product_id":"student-thermometers-pack-of-12-40-to-50c","title":"Student Thermometers Pack of 12 -40 to 50C","description":"\u003ch2\u003eTwelve student thermometers at $3.60 each - but read the temperature limit first\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003e12 thermometers, -40 to +50 degrees C, roughly 15cm long. Glass tube on a PVC backing. Mercury free. Ages 6+.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe limit is 50 degrees C. These cannot go in boiling water, or in hot water from a kettle, or in a beaker over a bunsen.\u003c\/strong\u003e The supplier says so plainly and so do we, because a pack of twelve broken thermometers is an expensive lesson. If your class is heating anything, buy the red spirit lab thermometers instead, which read to 110.\u003c\/p\u003e\u003cp\u003eWhat these are for is everything below body temperature: the room, outside the window, a glass of water in the fridge, ice melting, the difference between the shade and the sun. That is most of primary science and a good deal of early secondary.\u003c\/p\u003e\u003cp\u003eThe plastic backing is what makes them work with young children. It is a flat card with the glass tube fixed along it, so the thing has a shape, it does not roll, a child can hold it without pinching a bare tube, and it can be left standing in a beaker or stuck to a window and forgotten about.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTwelve is the number that changes the lesson.\u003c\/strong\u003e One thermometer is a demonstration; twelve is every pair of students taking their own reading and finding out that measurements disagree - which is the actual lesson.\u003c\/p\u003e","brand":"MTA Essentials","offers":[{"title":"Default Title","offer_id":53792749191531,"sku":"EVEIS1200","price":43.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2795\/8891\/files\/eis1200_student-thermometers-set-of-12_v1_1.webp?v=1788352638","url":"https:\/\/megaofficesupplies.com.au\/products\/student-thermometers-pack-of-12-40-to-50c","provider":"Mega Office Supplies","version":"1.0","type":"link"}