Switch to Twig Science to check out our NGSS product.
A violent, spinning vortex of air, the tornado is one of the most extreme and terrifying forms of weather.
A tornado is an isolated storm event, which forms ahead of a weather front in conditions of extreme air pressure and temperature.
Tornadoes:
Isolated storm event
Extreme differences in air pressure
Extreme differences in temperature ...
Please log in to view and download the complete transcript.