Wavelength, frequency and energy of electromagnetic radiation Animation Play

When does an eclipse occur? Animation Play

When does an eclipse occur? Animation Play

When does an eclipse occur? Whiteboard exercise Play

When does an eclipse occur? Student activity Play

Work function Student activity Play

Work function Simulation Play

Work function Whiteboard exercise Play

X-ray radiation Whiteboard exercise Play

X-ray radiation Student activity Play

X-ray radiation Student activity Play

X-ray radiation Slideshow Play

X-ray radiation Whiteboard exercise Play

X-ray radiation Glossary Play

X-ray radiation Simulation Play

X-rays Animation Play

X-rays Animation Play

X-rays Class activity Play

X-rays Whiteboard presentation Play

α decay Animation Play

α decay Student activity Play

α, β and γ radiation Animation Play

β plus radiation Whiteboard exercise Play

β+ radiation Student activity Play