This activity is most appropriate for students aged 14-16 to illustrate chemical reactions and useful materials made from rocks.
Some of the simple chemical reactions of limestone (calcium carbonate, CaCO3) and lime (calcium oxide, CaO).
This activity is most appropriate for students aged 14-16 to illustrate chemical reactions and useful materials made from rocks.
Some of the simple chemical reactions of limestone (calcium carbonate, CaCO3) and lime (calcium oxide, CaO).
A spectacular practical demonstration to show the differences between elements, mixtures and compounds
By Helen Harden
Develop your learners’ understanding of symbols and formulas at different conceptual levels by comparing the symbolic representations of carbon monoxide and cobalt
2026-05-13T06:00:00Z By Kristy Turner
Kristy Turner shares approaches to secure your 11–14 and 14–16 learners’ knowledge and build confidence
By Helen Harden and Neil Goalby
Datblygu dealltwriaeth y dysgwyr o ddellt ïonig drwy gymharu cynrychioliadau 2D a 3D
Defnyddiwch yr awgrymiadau sydd wedi’u sgaffaldio i helpu’r dysgwyr i ysgrifennu am swm y sylwedd mewn molau
By Sarah Binns
Rhoi cydbwyso hafaliadau cemegol mewn cyd-destun gyda chwestiynau am danwydd