Chemistry

Learn Chemistry for Free

Chemistry is the study of matter—what it is made of, how it behaves and how substances interact to form new materials. It connects to everyday life through energy, medicine, materials, food science and environmental processes.

This page introduces the main areas of chemistry and links to clear, accessible learning resources including videos, articles and practice materials.


Start Learning Chemistry

Introduction to Chemistry

An overview of what chemistry studies, key themes such as atoms, reactions and energy, and why the subject matters.

States of Matter

Covers solids, liquids and gases, particle behaviour and how state changes occur.

Atoms and Elements

Introduces atoms, elements, atomic structure, the periodic table and how elements are organised.

Compounds and Mixtures

Explains chemical compounds, molecules, mixtures, and how substances combine and separate.


Core Chemistry Topics

Chemical Reactions

Covers reaction types, reactants and products, conservation of mass and simple reaction equations.

Acids, Bases and pH

Explains acids, bases, indicators, neutralisation and how the pH scale works.

The Periodic Table

Explores groups, periods, trends (e.g., reactivity), metals, non-metals and common element families.

Bonding

Introduces ionic, covalent and metallic bonding and how each type forms.


Intermediate Chemistry

Energy Changes

Explains exothermic and endothermic reactions, activation energy and everyday examples.

Rates of Reaction

Covers how temperature, concentration, surface area and catalysts affect reaction speed.

Electrolysis (Basics)

Introduces how electricity can break compounds into elements and common applications.

Metals and Reactivity

Covers metal properties, reactivity series and displacement reactions.


Advanced Chemistry

Organic Chemistry (Intro)

Explains hydrocarbons, simple functional groups and common organic molecules.
→ Link to Organic Chemistry (Intro) page

Quantitative Chemistry

Covers moles, relative formula mass and basic calculations involving chemical quantities.

Environmental Chemistry

Introduces pollution, climate-related chemistry, water treatment and sustainability topics.


Chemistry Resources

Chemistry Videos

Curated free videos explaining key concepts, reactions and real-world applications.

Chemistry Practice & Worksheets

Downloadable worksheets and practice tasks covering calculations, reactions and core ideas.


Optional Next Steps

Once learners are confident with the fundamentals, they can explore:

  • Applied Chemistry – Materials science, pharmaceuticals, energy production.
  • Laboratory Skills – Safe practices, equipment use and experimental methods.
  • Case Studies – Real examples showing chemistry in everyday life and industry.