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19 Cards in this Set
- Front
- Back
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Hypothesis:
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An educated guess.
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Theory:
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A conclusion that is well supported by data from many different scientist's experiments.
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Law:
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A conclusion that is well supported by data from many different scientist's experiments.
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Experiment:
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A controlled test.
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Control:
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A tested sample that is not exposed to the dependent variable.
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Model:
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A representation that serves to explain a scientific phenomenon.
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Homeostasis:
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The ability to maintain a constant state.
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Atom:
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The smallest component of an element having the chemical properties of the element.
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Element:
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A substance that cannot be separated into simpler substances.
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Electrons:
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Sub-atomic particle carrying a negative charge.
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Neutrons:
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Chargeless particle, typically found in the nucleus of an atom, with a weight similar to a proton.
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Protons:
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Positively charged sub-atomic particle that is located in the nucleus of an atom.
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Ion:
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Atom that carries a charge because it lost or gained one or more electrons
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Molecule:
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The smallest unit of a substance that can exist alone and retain the properties of that substance.
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Chemical Reaction:
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A change in the arrangement of atoms to create substances of different composition and properties.
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Carbohydrate:
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Sugars and starches that are the most efficient source of food energy. Contains carbon, hydrogen, and oxygen
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Lipid:
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A water-insoluble molecule which makes up fat.
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Protein:
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The major structural component of all body tissue, made of amino acids.
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Nucleic Acid/Nucleotide:
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A subunit of DNA or RNA
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