Learning physics and chemistry easily and freely - Science for elementary school, middle school and high school

Free online chemistry lessons for elementary school, middle school and high school.
Take advantage of scientific resources that can be used freely to discover chemistry, the science of matter and its transformation




States of matter

Mixtures and solutions

Mass and volume

Air and atmosphere

Atoms and molecules


Atoms and chemical reactions



Acidic and basic solutions

Electrochemical cells and chemical energy

Chemistry lessons
Water, states of matter, atom, molecule, chemical reaction, ion, combustion, metal ...

Electricity lessons
Electric circuit, current, conductor, insulator, Ohm's law, series and parallel circuit, circuit diagram ...

Mechanics lessons
motion, speed, trajectory, mass, weight, rotation, kinetic energy, Isaac Newton ...

Optics lessons
Light, laser, shadow, propagation of light, ray, converging and diverging lens, color ...


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