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35 Cards in this Set
- Front
- Back
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1. Observation:
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Receiving knowledge, or recording data from something you have observed.
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2. Conclusion:
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A judgment based on the information obtained.
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3. Applied Research:
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A type of scientific investigation that is taken in order to solve a specific problem.
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4. Experiment:
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A set of controlled observations that test a hypothesis.
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5. Qualitative Data:
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Information describing color, odor, shape, or some other physical characteristic.
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6. Quantitative Data:
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Numerical information describing how much, how little, how big, how tall, or how fast.
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7. Pure Research:
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A type of scientific investigation that seeks to gain knowledge for the sake of knowledge itself.
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8. Base Unit:
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A defined unit in a system of measurement that is based on an object or event in the physical world, and is independent of other units.
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9. Accuracy:
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How close a measured value is to the accepted value.
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10. Scientific Notation:
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Expresses any number as a number between 1 and 10 (coefficient) multiplied by 10 raised to a power (exponent).
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11. Density:
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Amount of mass per unit volume; physical property.
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12. Liter:
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The metric unit for volume equal to one cubic decimeter.
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13. Meter:
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The SI base unit for length.
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14. Gram:
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The SI base unit for mass.
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15. Chemical Property:
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The ability or inability of a substance to combine with or change into one or more new substances.
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16. Physical Property:
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A characteristic of matter that can be observed or measured without changes the sample’s composition. (density, color, taste, hardness, and melting point)
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17. Intensive Property:
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A physical property that remains the same no matter how much of a substance is present.
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18. Extensive Property:
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A physical property, such as mass, length, and volume, that is dependent upon the amount of substance present.
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19. States of Matter:
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The physical forms in which all matter naturally exists in Earth-most commonly as a solid, liquid, or a gas.
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20. Solid:
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A form of matter that has its own definite shape, and volume, its compressible, and expands only slightly when heated.
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21. Liquid:
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Form of matter that flows, has constant volume, and takes the shape of the container. Indefinite shape, and definite volume.
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22. Gas:
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A form of matter that flows to conform to the shape of its container, it fills the container’s entire volume, and is easily compressed. Indefinite shape, and indefinite volume.
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23. Chemical Change:
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Process involving one or more substances changing into new substances; also called a chemical reaction.
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24. Physical Change:
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Type of change that alters the physical properties of a substance, but doesn’t change is composition.
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25. Plasma:
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Ionized gas.
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26. Halogen:
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Highly reactive group 17 element.
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27. Group:
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Vertical column of elements in the periodic table arranged in order of increasing atomic number (family)
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28. Periods:
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Horizontal row of elements in the modern periodic table.
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29. Metal:
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An element that is solid at room temperature, a good conductor of heat and electricity, and generally is shiny; most metals are ductile and malleable.
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30. Periodic Law:
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States that when the elements are arranged by increasing atomic number, there is a periodic repetition of their properties.
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31. Ion:
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An atom or bonded group of atoms with a positive or negative charge.
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32. Electronegativity:
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Indicates the relative ability of an element’s atoms to attract electrons in a chemical bond.
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33. Nonmetal:
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Elements that are generally gases or dull, brittle solids that are poor conductors of heat and electricity.
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34. Octet Rule:
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States that atoms lose, gain, or share electrons in order to acquire the stable electron configuration of a noble gas.
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35. Noble Gas:
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An extremely unreactive group 18 element.
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