I’m surely not the only one who plays the “I don’t know”/”God makes it happen” card when faced with the “where does the wind come from” question? Oh cringe, I know, such a cop out, but no longer! No, because now I know! I found a fabulous how to make a wind meter article, filled with clearly explained information on wind, and how it works. You can find the article at Scientific American HERE. There’s plenty of problem solving, measuring and spatial awareness going on whilst you making these (and the dinosaurs and bikes they also inspired my daughter to...
A trundle wheel is a measuring tool. Basically it is a wheel that helps to record the distance travelled. More complex wheels have a recording mechanism but the basic wheels (that you might remember using in school) click every interval. You count these clicks to determine the distance travelled.
Once you have a trundle wheel you can complete large scale measuring activities with ease. They're useful for map making, trigonometry activities, or speed activities such as Panther Run.