Rock cycle Whiteboard exercise Play

Sac fungi (division Ascomycota) Student activity Play

Stages of HIV life cycle Whiteboard exercise Play

Stages of the life cycle of angiosperms Whiteboard exercise Play

Stages of the rock cycle Whiteboard exercise Play

The Calvin cycle Student activity Play

The carbon cycle Slideshow Play

The carbon cycle and human activities Slideshow Play

The cardiac cycle Animation Play

The Carnot engine Whiteboard exercise Play

The Carnot engine Student activity Play

The Carnot engine Animation Play

The Carnot engine Animation Play

The Carnot engine Animation Play

The Carnot engine Animation Play

The cell cycle Simulation Play

The cell cycle and its impact on the cell division Simulation Play

The energy cycle – Calvin cycle Animation Play

The heart and physical effort Slideshow Play

The hydrological cycle Animation Play

The Krebs cycle Animation Play

The Krebs cycle – a characteristic stage of aerobic respiration Student activity Play

The life cycle of a bryophyte Whiteboard exercise Play

The life cycle of a cap fungus Animation Play

The life cycle of a chytrid Synchytrium endobioticum Animation Play