Energy expenditure for physical activity Student activity Play

Energy expenditure for physical activity Whiteboard exercise Play

Energy in chemical reactions Student activity Play

Enthalpy and entropy changes Animation Play

Enthalpy changes Animation Play

Enthalpy changes Animation Play

Enthalpy changes in the solution process Whiteboard presentation Play

Enthalpy changes in the solution process Class activity 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

Fetal circulation and its changes after birth Student activity Play

Field changes Whiteboard exercise Play

Formulating a chemical equation Whiteboard exercise Play

Formulating a chemical equation (1) Student activity Play

Genetic sources of variation Animation Play

Glowing of platinum in a burner flame: a physical change Animation Play

Health and physical activity Slideshow Play

Heating and cooling curves Student activity Play