RT @Mount_Kelly An outdoor #chemistry lesson testing the water & soil pH at the Sygun Copper mine #Wales #HMCschools twitter.com/Mount_Kelly/st…
Tweet 13/06/2016 02:28 PM
Posted by HMC Admin on 13 Jun 2016
Modified by HMC Admin on 06 Sep 2023
RT @Mount_Kelly An outdoor #chemistry lesson testing the water & soil pH at the Sygun Copper mine #Wales #HMCschools twitter.com/Mount_Kelly/st…