Energy sources and cell respiration Student activity Play

Energy sources and cell respiration Whiteboard exercise Play

Energy stored in fossil fuels Slideshow Play

Energy transformation in the muscles Whiteboard exercise Play

Energy transformations in an electrical circuit Student activity Play

Energy transformations in an electrical circuit Simulation Play

Energy transformations in an electrical circuit Whiteboard exercise Play

Energy-saving adaptations Student activity Play

Energy-saving adaptations Whiteboard exercise Play

Energy-saving adaptations in the vulture Animation Play

Energy-saving feeding adaptations Slideshow Play

Enlargement on the plane Animation Play

Enlargements Class activity Play

Enlargements Whiteboard presentation Play

Enlargements in the coordinate system Student activity Play

Enlargements in the coordinate system Whiteboard exercise Play

Enlargements with fractional scales Student activity Play

Enlargements with fractional scales Whiteboard exercise Play

Enlargements with negative scales Student activity Play

Enlargements with negative scales Whiteboard exercise Play

Entamobea hystolytica Illustration Play

Entamoeba histolytica – a pathogenic protozoan Slideshow Play

Enterobiasis Slideshow Play

Environment; habitat and niche Animation Play

Environmental changes – dietary changes Student activity Play

Environmental changes – dietary changes Whiteboard exercise Play

Environmental factors and their effects on seed germination Animation Play

Environmental factors necessary for germination Student activity Play

Environmental factors that affect human existence Animation Play

Environmental factors that affect plants Whiteboard exercise Play