Science
Which of these is a unit of length used in marine navigation?
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The definition of "clouds composed of small particles, mostly ice crystals" best fits which science term?
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Which of these objects is an example of a simple machine?
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About how many days does it take for the moon to pass through all phases?
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The obscuring from sight of one celestial body by another is also by what scientific term?
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What is the world's largest non-profit, scientific and educational organization?
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Which of the following energy sources do gardens rely on most for survival?
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What would you do to a bucket of sand and water to separate one from the other?
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A very fast white water cascade is also known as what?
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Colors other than white, black and the pure greys are known as what?
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What is the opening of a lens, which controls the amount of light?
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What is the rhythmic repetition surrounding the planetary day called?
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What are solid particles that produce color by absorbing or reflecting light called?
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