Answers to Questions Kids Ask! - Where "Why?" Turns to "Wow!"
Air is primarily made up of two elements, nitrogen and oxygen. Nitrogen makes up 78.05% of air and oxygen another 20.95%. The remaining less than 1% is primarily argon, but carbon dioxide, neon, helium, methane and krypton are also present in air. Air also contains suspended dust, spores, and bacteria, as well as water. The amount of air varies tremendously with location, temperature, and time. In deserts and at low temperatures, the content of water can be less that 0.1% by volume. In warm, humid zones the air may contain over 6% water.
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Word of the Daychiaroscuro:
chiaroscuro: the distribution of light and shade in a picture.
Born on this dayNovember 19, 2014
1917 - Indira Gandhi
1937 - Ray Collins
1938 - Hank Medress
1938 - Ted Turner
1942 - Calvin Klein
1949 - Raymond Blanc
1961 - Meg Ryan
1962 - Jodie Foster