There are no set temperatures for schools to have to close in the United States. Individual school districts make that decision based on whether going to school at a given temperature would be unsafe for students.
It depends on how close or far they are from the school. If its relatively close, they will walk, otherwise, they will go by car, bus, or taxi. Basically the same way here in the US, only the schools don't have school buses.
United KingdomIt depens what the laws are in your country. Here in the UK - there are specific health & safety laws regarding minimum temperatures for buildings. If a school couldn't maintain the legal minimum temperature, it would have to close temporarily.United StatesSometimes. If temperaturs are bitterly cold, that and other factors would be considered. If school district administers determine that the conditions pose possible dangers for students, schools could be closed.To learn how to find out if a school in the UK, US, or other country is closed, visit this question: How_do_you_know_if_your_school_is_closed_due_to_inclement_weather_on_a_certain_day
It depends on the spark...For most small electrostatic sparks, the kind you might see in school from a Van Der Graff generator, the temperature is around 4000oC - 5000oC, close to the temperature of the surface of the Sun.For the largest sparks - lightning - the temperature can reach around 30,000oC.
Long Close School was created in 1940.
Dean Close School was created in 1886.
Laws for school closings, as far as is known, involves making up days that are missed due to weather, not about actually closing schools for weather related causes. The decision to close schools for weather is made by each school district based on weather conditions and keeping students safe.
Some, but not all schools may have guidelines for temperatures they close schools for. Usually, there are no firm guidelines, but schools open later when the temperature and other factors are determined to be dangerous for children to go from their homes to the school. Schools seldom close for the entire day because of low temperatures, but open an hour or two later than normal.
We don't have school prefect's day in the US, but we do have what we call Open House, where friends and family can be invited to your school. If this is close ,a verbal or telephone invite is OK.
Greatest efficiency at that temperature.
There is no set temperature for schools to close in the United States. It is a decision each school district makes and they are much more likely to delay the start of school for low temperatures than they are to close schools for a day.
It is variable but close to the general weather temperature.
it is close but rigt now it is in the top 20 so it is pretty good but not the top.