More accurate rounding of the temperature Whiteboard exercise Play

Most exothermic reactions are spontaneous Animation Play

Movement without the Doppler effect Whiteboard exercise Play

Movement without the Doppler effect Student activity Play

Natural water (1) Student activity Play

Negative effects of doping on the circulatory system Slideshow Play

Neutralisation and pH Slideshow Play

Neutralisation and pH Student activity Play

Newton's law of cooling Student activity Play

Noble gases Whiteboard exercise Play

Non-structural adaptations Student activity Play

Not all collisions are effective Student activity Play

Nuclear fusion reactions Student activity Play

Nuclear fusion reactions Animation Play

Number of moles of ammonia molecules Animation Play

Observation of the temperature changes of the system during a chemical reaction Animation Play

Obtaining ethanol Student activity Play

Ocean Simulation Play

On what does an increase in temperature depend? Simulation Play

On what does an increase in temperature depend? Student activity Play

On what does an increase in temperature depend? Whiteboard exercise Play

On what does the Doppler effect depend? Whiteboard exercise Play

On what does the Doppler effect depend? Student activity Play

Origin of crude oil (2) Whiteboard exercise Play

Origin of crude oil (2) Student activity Play