This brief video from Crash Course Kids introduces students to severe weather. It explains that severe weather is more extreme than normal daily weather conditions. There is a brief description of the following forms of severe weather: tornados, hurricanes, blizzards, flooding and drought. The video then gives an example of the impact of severe weather on the biosphere and geosphere. This example uses the impact of drought and flooding on plants, animals and land. The conclusion ties it up with two questions to ask about weather to tell if it is severe: “Does it put life or property at risk?” and “Does it have a major impact on the biosphere and the geosphere?”