Discontinuous variation Slideshow Play

Discontinuous variation Student activity Play

Diseases related to chromosome changes Illustration Play

Distinguish between a physical and a chemical change Whiteboard exercise Play

Distinguish between a physical and a chemical changes Whiteboard exercise Play

Diurnal changes in the body temperature of the camel Animation Play

Doubling time changes Whiteboard exercise Play

Doubling time changes Student activity Play

Early research on mutations Slideshow Play

Effect of emotions and physical effort on the respiratory system Animation Play

Effect of physical activity Whiteboard exercise Play

Effect of physical activity on blood flow through the organs; cardiac output and stroke volume Student activity Play

Effects of changes in blood volume on the volume of excreted urine Simulation Play

Effects of physical effort Chart Play

Effects of physical effort on the functioning of the circulatory system Class activity Play

Effects of physical effort on the functioning of the circulatory system Whiteboard presentation Play

Effects of physical factors on the rate of photosynthesis Slideshow Play

Electric field changes Whiteboard exercise Play

Electric field changes Student activity Play

Electric field changes Animation Play

Emotional changes Student activity Play

Emotional changes - PMS Slideshow Play

Energy changes during chemical reactions Animation Play

Energy changes during processes Slideshow Play

Energy changes during the combustion of Period 3 elements in oxygen Animation Play