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First of all, what is a hygrometer and why would you want to make one?A hygrometer is a tool used by meteorologists(scientists who study the weather) to measure how much moisture is in the air.You mig ...
It’s hard to believe, but the tiny grains of sand you see at the beach were once part of giant boulders. Over many years, these huge rocks were broken down into smaller pieces in a process called weat ...
Energy is all about action! Thermal energy is transferred in many ways. The thermal energy of a substance can be determined by adding up all the kinetic and potential energy of its molecules. Convecti ...
Hipervinculo Ciencias de la Tierra y Medioambiente
Do you wonder why the weather changes all the time? Would you like to fly an airplane someday? If you answered “yes” to either of these questions, you need to learn how air molecules move!When we feel ...
Hipervinculo Ciencias de la Tierra y Medioambiente
Have you ever woken up after a clear summer night to find the grass is wet, even though you know it didn’t rain overnight? The moisture on the grass is called dew, which forms when water in the form o ...
There are lots of great reasons to learn how to make a solar oven! Maybe you’re going camping. Maybe you’re interested in learning about different ways to concentrate the sun’s energy. Maybe you’re in ...
If you leave of cup of water on a sunny table outside, the water disappears in a couple days. Where does it go? When water “disappears,” how does it get back to us? Learn how to make a water cycle mod ...
One of the hallmarks of autumn, besides leaves falling and children returning to school, is frost. Frost is the fine layer of water crystals that forms from water vapor in the air. In August, you migh ...
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