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Change: Change

Content of this Unit

Changes to materials can be reversible or irreversible.

  • describing what happens when materials are mixed
  • investigating the solubility of common materials in water
  • investigating the change in state caused by heating and cooling of a familiar substance
  • investigating irreversible changes such as rusting, burning and cooking
  • exploring how reversible changes can be used to recycle materials
  • investigate reversible reactions such as melting, freezing and evaporating

Reversible and Irreversible Changes

An interactive from BBC Schools

Books in our Library on Change and Recycling

For Teachers


TigTag is a collection of Science video clips and associated activities on a range of topics for the primary school.