Powers – a reminder Student activity Play

Powers – a reminder Whiteboard exercise Play

Powers, roots and indices Class activity Play

Powers, roots and indices Whiteboard presentation Play

Practical applications of voltaic cells Student activity Play

Practical applications of voltaic cells Slideshow Play

Predators and prey Student activity Play

Problems with the transmission of electrical energy Simulation Play

Problems with the transmission of electrical energy Student activity Play

Production of energy in nuclear power plants Animation Play

Prokaryotes Slideshow Play

Quantities of essential elements in 1000 g of dry plant mass Illustration Play

R.m.s. voltage and r.m.s. current Student activity Play

R.m.s. voltage and r.m.s. current Animation Play

Radiation of solids Student activity Play

Radiation of the stars Student activity Play

Radiation of the stars Simulation Play

Radiation of the stars Whiteboard exercise Play

Raising 10 to a negative integer Whiteboard exercise Play

Raising 10 to a positive integer Whiteboard exercise Play

Raising 10 to an integer Animation Play

Rate at which work is done Whiteboard exercise Play

Rate at which work is done Student activity Play

Rate of photosynthesis and water balance of a plant Slideshow Play

Reciprocal of irrational numbers Whiteboard exercise Play