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10 Cards in this Set
- Front
- Back
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Who discovered that galaxies are not stationary?
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Edwin Hubble
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The approximate age of the universe is about...
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15 billion years
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The debris present between the planets Mars and Jupiter are called what?
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asteroids
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The maximum and minimum temperatures of the planet mercury are about...
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525 C - -175 C
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A piece of wood with a volume of 240 cubic cm and a mass of 138 grams is split into two. What will be the ratio of the density of the original piece of wodd to that of the two halves?
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1:1
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An antidiuretic is a substance that minimizes the amount of water lost by the body. On which organ would this type of substance most likely act?
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kidney
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If a person develops a disorder that affects the normal functioning of the pancreas, what is the substance that will not be kept in balance without the help of medication?
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glucose
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Two solutions are resting in beakers in a lab. One solution has a pH value of 3 and the pHof the second is unknown. When the two solutons are combined the resulting solution has a pH of 6. What can be concluded about the second solution from the data?
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It has a lower hydrogen ion concentration than the first solution.
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What attrribute of a DNA strand is most directly related to the traits it can code for?
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sequence of the bases
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A scientist makes a claim that life must exist on another planet because that planet's atmosphere has higher levels of carbon dioxide. What question might someone ask when trying to determine the validity of this statement?
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Can anything other than living organisms lead to the presence of carbon dioxide in the planet's atmosphere?
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