Why Is the Sky Blue?
The daytime sky is blue because of what happens to sunlight as it enters the Earth’s atmosphere. When the Sun is low near the horizon as it rises or sets, the...
Read MoreThe daytime sky is blue because of what happens to sunlight as it enters the Earth’s atmosphere. When the Sun is low near the horizon as it rises or sets, the...
Read MoreHow Are the Pictures Formed on Camera Film? Photographic film is a thin sheet of plastic, coated with special chemicals. Where light rays hit the film, chemical changes...
Read MoreHow Does a Magnifying Glass Make Things Look Bigger? A magnifying glass enlarges an object’s appearance by bending the light rays that filter through it, thus...
Read MoreHow Does a Camera Take Pictures? A camera uses light to record a picture on film where light rays acts on a specially prepared sensitive surface of the film. If light...
Read MoreHow do X-ray take a picture of a person’s insides. Doctors use X-ray pictures to see inside the body. These “pictures” are actually shadow pictures of...
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