Enthalpy changes Animation Play

Enthalpy changes in the solution process Class activity Play

Enthalpy changes in the solution process Whiteboard presentation Play

Entropy and conversion of the kinetic energy of a body into its internal energy Student activity Play

Entropy and conversion of the kinetic energy of a body into its internal energy Whiteboard exercise Play

Entropy and spontaneous changes Whiteboard exercise Play

Entropy and spontaneous changes Student activity Play

Environmental changes – dietary changes Student activity Play

Environmental changes – dietary changes Whiteboard exercise Play

Environmental variation of the arrowhead Animation Play

Events causing changes in the concentration of oxygen in the Earth's atmosphere Whiteboard exercise Play

Examples of adaptations to daily changes Illustration Play

Examples of adaptations to seasonal changes Illustration Play

Exploitation of natural resources Whiteboard exercise Play

Falling body Animation Play

Fetal circulation and its changes after birth Student activity Play

Field changes Whiteboard exercise Play

Food and drugs Whiteboard presentation Play

Food and drugs Class activity Play

Forces and rotation Student activity Play

Functions of epithelial tissue Slideshow Play

Functions of the somatic nervous system Animation Play

Gas giant Chart Play

Genetic sources of variation Animation Play

Heterogeneous bodies Animation Play