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    Question: Which of these chemical elements is heavier than iron?
    Answer: The atomic weight of gold is 196.967, which makes it heavier than iron, which has an atomic weight of 55.845.
    Question: A baby blue whale drinks this many liters of milk per day:
    Answer: A baby blue whale drinks approximately 190 liters of milk each day. By contrast, a baby tiger drinks only about a liter of milk per day.
    Question: What airplane has not been flown commercially since 2003?
    Answer: The first commercial jet to travel faster than the speed of sound was the Concorde. Developed by Great Britain and France, it flew from 1976 until 2003.
    Question: Who invented the geodesic dome?
    Answer: R. Buckminster Fuller, an American architect and designer, invented the geodesic dome in the 1940s. Many thousands of domes have been built according to his plans.
    Question: In physics, for every action there is an equal and opposite what?
    Answer: Newton’s third law of motion states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction. In other words: for every action, there is an equal and opposite reaction.
    Question: Who invented the World Wide Web?
    Answer: In the early 1990s, a group of computer scientists at CERN in Switzerland devised a way to send digital information over the Internet so that it could be accessed on a graphic user interface.
    Question: Which of the following technological developments came first?
    Answer: The first telescope is thought to have been built in the Netherlands in the early 1600s, but Italian mathematician Galileo Galilei almost immediately popularized use of the "far seeing" device for scientific purposes.
    Question: When was the first plastic made of artificial materials patented?
    Answer: In 1909 a chemist named Leo H. Baekeland developed the first plastic made completely from synthetic (human-made) materials. Baekeland named the new material Bakelite.
    Question: Moths are a member of what order?
    Answer: Moths are of the same order as butterflies, the lepidoptera. The name means "with scaly wings."
    Question: For what is the Jurassic period named?
    Answer: The Jurassic period is named for the Jura Mountains, where many fossils have been found.
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