Mixtures and reactions

Separate, dissolve and rearrange particles while following the evidence.

Choose any question to begin.

Start journey →

1. 1

   How can a mixture be separated without a reaction?

   Choose a virtual tool that uses a difference in physical properties.

   Open this discovery →
2. 2

   Where does a solid go when it dissolves?

   Track solute particles and the limit of a simplified solution.

   Open this discovery →
3. 3

   Can atoms disappear in a chemical reaction?

   Rearrange a limited inventory of atom groups and compare totals.

   Open this discovery →
4. 4

   What can change how quickly a reaction proceeds?

   Compare temperature and a catalyst in an explicitly illustrative reaction model.

   Open this discovery →
5. 5

   What can an indicator tell us about a solution?

   Compare virtual pH values and an illustrative colour indicator.

   Open this discovery →

Each discovery includes all five reading levels. Journey progress reflects the checkpoints answered on this browser.

Explore another journey →