Science class online
Chemistry and physics lessons
atom physics lesson


chemistry high school

Free online optics lessons for elementary school, middle school and high school.
Take advantage of scientific resources that can be used freely to discover optic, the science of light


Light sources
Types of light sources
Why can we see objects ?

Propagation of light
Rectilinear propagation of light
beams of light
Speed of light
Light and distances

Shadows, lunar eclipses and phases of the moon
Formation of shadows
The Moon and eclipses

Colored lights - color of objects

Decomposition of white light
Colored lights
Color of objects

Image formation - Thin lenses
Thin converging and diverging lenses
Image formation by thin lenses
Vision and eyes