Gear up for Halloween with the “Eight is Enough” spider bundle and the “Tricks and Treats” bundle. Both are on sale! All nature studies are downloadable PDFs.

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Hot Topic

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Have you ever had your temperature taken or glanced at the thermometer outside on a particularly hot or cold day to see what the temperature was? What exactly is temperature? Temperature is actually a measurement of the amount of heat in something. Heat is a type of energy that is formed by the movement of small particles of different substances called molecules. The faster they move, the more heat that’s generated. That makes sense if you’ve ever had a dance party in your living room or run around a track or played a game of tag with your friends in the park. Usually, the faster you move, the more hot and sweaty you become. Heat gives off warmth, like when you take a batch of cookies out of the oven. You can feel the heat from both the oven and the cookies themselves. And you have to wait a few minutes before you can eat a cookie without burning your mouth. We would say the cookies have a high temperature when they come out of the oven, and then after sitting on the counter for a little while, the temperature decreases so the cookies feel colder (which means less heat).