Miss Dawnpaw -
Chatterbox: Inkwell
Miss Dawnpaw -
Miss Dawnpaw - Do you still want your re-do?
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NEW LESSON:
Atmosphere:
Surrounding the earth is a thin layer gas, which we know the air around us. Tiny particles of liquids and solids, such as dust, smoke, and salt, are also present in the air. When we view the earth from space we see clouds formed from the water in the atmosphere. The atmosphere traps energy from the sun, allowing the earth’s surface to be warm enough for liquid water to exit. The atmosphere also provides protection from a harmful form of solar radiation and from material from space. Plants and animals depend on the atmosphere for oxygen and carbon dioxide.
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Magnetosphere:
At the earth’s center is a region called the core. The core is made mostly of iron and consists of a solid inner core and liquid outer core. This liquid outer core acts like a magnet, and the magnetic field from that magnet surrounds the earth. This protective field is called the magnetosphere.
(This sphere is not visible, but you can see its effects. Spectacular aurora (known as the northern lights in the Northern Hemisphere) occurs where charged particles trapped in the magnetosphere interact with the atmosphere.)
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Please write a minimum of seven sentences about these spheres.
(October 19, 2009 - 12:58 pm)
This was meant to go in the Science classroom, whoops!
(October 19, 2009 - 1:41 pm)
Rise Old Thread!!TOP
(May 30, 2011 - 9:43 pm)