Effects of temperature and volume on gas pressure Slideshow Play

Efficiency of the Carnot cycle Student activity Play

Efficiency of the Carnot cycle Whiteboard exercise Play

Energetic effects of combustion Student activity Play

Energy value of fuel Animation Play

Evaporation and condensation Whiteboard presentation Play

Evaporation and condensation Class activity Play

Examples of pressure calculations Simulation Play

Exchange of substances with the external environment Animation Play

External and internal fertilization Slideshow Play

External fertilization Animation Play

External fertilization in newts and salamanders Animation Play

External gills Slideshow Play

External muscle structure Animation Play

External photoelectric effect Class activity Play

External photoelectric effect Whiteboard presentation Play

External structure of a root Simulation Play

External structure of the heart Slideshow Play

Factors affecting reaction rate Class activity Play

Factors affecting reaction rate Animation Play

Factors affecting reaction rate Whiteboard presentation Play

Factors that affect the progress of the reaction for the synthesis of ammonia Animation Play

Fast and slow reactions Student activity Play

Fertilization and development Student activity Play

Fertilization and development Whiteboard exercise Play