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www.reference.com/science/four-spheres-earth-cd497bcdc98f4c82

The four spheres of the Earth are the atmosphere, the biosphere, the hydrosphere and the lithosphere. Each of these spheres is considered by scientists as interconnected in a greater geosphere that harbors all terrestrial life and materials.

www.reference.com/world-view/properties-sphere-4c8886297208d4e5

A sphere is a solid geometric figure defined as the set of all points equidistant from a common center point. It is perfectly symmetrical, and its surface is uniformly curved, without any edges, vertices or faces. It is the shape made when a semi-circle is rotated around its diameter.

www.reference.com/world-view/half-sphere-called-af86cccd855f499c

Half a sphere is defined as a hemisphere. The term hemisphere is derived from the Greek word "hemi," which means "half" and the Latin word "shaera," meaning "globe."

www.reference.com/world-view/shape-sphere-14eba6e150f19273

A sphere is a round-shaped object in three-dimensional space. All points on a sphere's surface are the same distance from its center point. Some examples of a sphere are a globe, marble, soccer ball and basketball.

www.reference.com/article/volume-sphere-97ae32714155513

The volume of a sphere is found by multiplying four-thirds by pi by radius cubed. The Greek mathematician Archimedes first derived this formula. He also found that the surface area of a sphere equals four by pi by radius squared.

www.reference.com/world-view/many-faces-sphere-4f2a4d66249cb7dd

A sphere has no faces. A sphere is defined as a round symmetrical object, while a face is defined a flat surface of an object. By definition a sphere does not have any faces.

www.reference.com/article/draw-sphere-75bc3563d199a952

One way to draw a sphere is to draw a circle and shade it with a crayon. You need a sheet of paper, a crayon, a pencil, a cotton ball, an eraser, a compass and a drawing board to accomplish this task.

www.reference.com/article/surface-area-sphere-6aa00576c49791e8

To find the surface area of a sphere, use the formula 4(pi)r2. In this formula, r is equivalent to the radius. Pi represents the infinite number 3.141592..., which is usually rounded to 3.14.

www.reference.com/article/volume-sphere-f40d402b877b785c

Find the volume of a sphere by solving for the equation V=4/3*pi*r^3, where V is volume, r stands for radius and pi is 3.1459. Cube the radius, and multiply that number by pi and 4/3 for the volume. Pi delineates the relationship between a circle's diameter and circumference.

A sphere can be made out of paper by using origami techniques to fold the paper several different ways and pushing it out to make it appear as a spherical shape. It is a moderately easy origami project.

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