We have been working extremely hard today on researching various types of extreme weather in the world.  We worked in our co-op learning groups to research storms, hurricanes, tornadoes, tsunamis and lightning.  Did you know that tornadoes can reach up to speeds of 483 kilometres per hour?  Did you also know that thunder and lightning happen at the same time, but because light travels faster than sound, we see lightning before we hear the thunder?