Energy conversions Class activity Play

Energy conversions Whiteboard presentation Play

Energy losses Student activity Play

Energy losses Whiteboard exercise Play

Energy transformations in an electrical circuit Student activity 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

Equal segments Animation Play

Equation of a circle Whiteboard presentation Play

Equation of a circle Class activity Play

Equation of a circle in the coordinate system Animation Play

Equation of any circle Simulation Play

Examples of covalent compounds with various internal structures Student activity Play

Examples of covalent compounds with various internal structures Whiteboard exercise Play

Exchange of heat and temperature Animation Play

Exercises about the equation of the circle with centre at an arbitrary point Student activity Play

Expansion of gases Class activity Play

Expansion of gases Whiteboard presentation Play

External and internal fertilization Slideshow Play

Female internal reproductive organs Whiteboard exercise Play

Fertilization and development Whiteboard exercise Play

Fertilization and development Student activity Play

Fibre optic cables Animation Play

Fibre optic cables Student activity Play

Finding points of intersection algebraically Animation Play