![]() This is a white box with slats in it to allow air to flow through the box. ![]() To measure the temperature accurately we keep our thermometer a Stevenson screens. Instead we now use digital thermometers or alcohol thermometers. We used to use thermometers that had mercury in them, but all of these are no longer used as mercury is dangerous if it were to leak out or the thermometer was to break. To measure temperature we use a thermometer, you probably have one of these at home for taking your temperature when you are feeling poorly. Temperature is a measure of how much heat energy something has when measuring the weather we usually want to know the temperature of the air. To do this we measure all the different parts of the weather and record it, this is called a weather observation. ![]() To be able to make the best weather forecasts we need to know, with as much detail and accuracy as possible, what the weather is doing right now.
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