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9 Cards in this Set
- Front
- Back
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What is a Hypothesis?
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a well framed answer to a tentative question.
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Main points of a
hypothesis: |
logical look at data,
needs to be able to be tested, hypothesis leads to a prediction. |
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Chemical properties of an atom?
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+ charged Nucleus,
_ charged electrons. Electrons determine how an atom interacts with another |
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What is the Atomic number?
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number of units of + charged protons in nucleus
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Major elements of the earth are:
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Carbon C
Hydrogen H Oxygen O Nitrogen N |
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Major elements of humans:
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Carbon, Hydrogen,
Oxygen, Nitrogen. makes up 96% of body |
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Trace elements are:
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any chemical element an organism needs in tiny amounts to survive.
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Hydrophillic is:
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water loving- readily absords or is disolving in water eg. sugar
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Hydrophobic is:
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Fear of water, (hating)
causes a barrier eg. wax, oil |
