All Structure and bonding articles – Page 13
How are crystals made? | 11-14 years
Use this lesson plan for 11–14 year olds to introduce the idea that crystals form as a substance cools, and explore how cooling rate affects crystal size.
Salty solvents – ionic really
Ionic compounds are usually high melting point solids. But mix together a powdered organic salt with aluminium chloride and the result is a clear, colourless, 'ionic liquid'
Find practical experiments, an interview and other activities for 11–16 year olds, examining the chemistry of crystals in scientific and everyday contexts.