Role of the kidneys in regulating water-electrolyte balance – Part 1 Whiteboard presentation Play

Role of the kidneys in regulating water-electrolyte balance – Part 1 Class activity Play

Role of the kidneys in regulating water-electrolyte balance – Part 2 Class activity Play

Role of the kidneys in regulating water-electrolyte balance – Part 2 Whiteboard presentation Play

Roots of roots – more examples of true or false equations Whiteboard exercise Play

Short-distance transport – transport between cells Student activity Play

Similarity – examples and definition Student activity Play

Simple examples of index laws Whiteboard presentation Play

Simple examples of index laws Class activity Play

Simplifying algebraic fractions – more complex examples Student activity Play

Solution of the equation – examples Simulation Play

Solving problems involving quadratic equations (1) Class activity Play

Solving problems involving quadratic equations (1) Whiteboard presentation Play

Stars and constellations Student activity Play

Stars and constellations Whiteboard exercise Play

Statements about diffusion Whiteboard exercise Play

States of matter Class activity Play

States of matter Whiteboard presentation Play

Structure and function of the loop of Henle Animation Play

Structure and functions of the plasma membrane Student activity Play

Structure of Paramecium Slideshow Play

Substances that in small animals are transported by means of diffusion Whiteboard exercise Play

Testing for carbon dioxide Animation Play

The concentrations of the dissolved substance Simulation Play

The diversity of respiratory surfaces Student activity Play