Mini Chemistry

Understand matter, explain change.

Connect particles, observations and equations with lessons and practice for your course.

Start here

Choose your Chemistry course

Match lessons and practice to the course shown in your timetable or examination registration.
Search for a topic

Solid

Close and regular

Liquid

Close and irregular

Gas

Widely spaced

The particles stay the same size and identity; their arrangement changes. Solids vibrate in fixed positions, liquids flow, and gases spread through the space available. A particle model, not to scale.

Choose your level

Compare Secondary and A-Level

Each stage has a different depth. Start with the one on your timetable.

Learn by doing

Use Chemistry, not just notes

Practise exam questions

Choose topic quizzes, structured written practice or a mock paper for your course.

Find practice

Explore the periodic table

Look up elements and compare how properties change across periods and down groups.

Open the periodic table

Build A-Level practical skills

Plan experiments, record observations and analyse results for practical assessment.

Study practical skills

Topic explorer

Find a place to start

Browse a short selection here, or open your course for its full topic list.

Latest updates

Pages we have recently updated, plus optional reading from the blog.

Updated