How Are Mountains Formed?
How Are Mountains Formed? Mountains are created by slow movements in the earth’s crust. In some places, heat and pressure deep inside the
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Heat
How Is Glass Made?
Ordinary glass is made from clean, white sand and two white, powdery chemicals known as soda and lime. Just plain sand can be made into glas
How Did the Solar System Begin?
How Did the Solar System Begin? To this day, the birth of our solar system remains a mystery. Scientists believe that some 4.6 billion years
Why Is It Hot at the Equator?
Why Is It Hot at the Equator? The equator is an imaginary circle around the Earth, dividing the Earth’s surface into the Northern and Sout
Why Do We Get Sunburned?
Why Do We Get Sunburned? Sunburn is the result of over-exposure to sunlight, which causes heat and light damage to the skin. Ultraviolet ray