Spectrum of helium Illustration Play

Spectrum of hydrogen Whiteboard exercise Play

Spectrum of hydrogen Student activity Play

Spontaneous and induced point mutations Animation Play

Spontaneous and stimulated emission Student activity Play

Spontaneous emission Animation Play

Stages in the development of a new plant variety Whiteboard exercise Play

Stars Whiteboard exercise Play

Stars Student activity Play

Stefan-Boltzmann Law Whiteboard exercise Play

Stefan–Boltzmann Law Student activity Play

Stellar radiation Simulation Play

Stellar radiation Animation Play

Stellar radiation Whiteboard exercise Play

Stellar radiation Student activity Play

The absorption of radiation by matter Animation Play

The atomic spectrum of hydrogen Animation Play

The brightness of stars Student activity Play

The brightness of stars Whiteboard exercise Play

The contribution of the greenhouse effect to global warming Animation Play

The discovery of X-rays Student activity Play

The division of electromagnetic waves Student activity Play

The division of electromagnetic waves Chart Play

The division of electromagnetic waves Whiteboard exercise Play

The electron microscope Student activity Play