Isothermal change Animation Play

Isotherms Animation Play

Joule–Thomson effect Animation Play

Kelvin scale Animation Play

Kelvin's idea Animation Play

Kinetic energy of molecules Animation Play

Kinetic model of a gas Animation Play

Kinetic theory of gases Class activity Play

Kinetic theory of gases Whiteboard presentation Play

Lake Animation Play

Latent heat of fusion Whiteboard exercise Play

Latent heat of fusion Animation Play

Latent heat of fusion Student activity Play

Latent heat of vaporization Student activity Play

Latent heat of vaporization Animation Play

Latent heat of vaporization Animation Play

Latent heat of vaporization Whiteboard exercise Play

Layers in the Earth's atmosphere Animation Play

Lena's temperature change Whiteboard exercise Play

Length contraction (Lorentz-Fitzgerald contraction) Student activity Play

Life in the sea Student activity Play

Light Student activity Play

Light and the electromagnetic spectrum Student activity Play

Light and ultraviolet radiation Student activity Play

Limiting factors – temperature Slideshow Play