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Chemistry I - Chapter 1

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  • Information that tells how much, how little, how big, how tall, or how fast.
    quantitative data
  • A visual, verbal, or mathematical explanation of experimental data.
    model
  • What is the eighth step of the scientific method?
    share results
  • The study of matter and the changes that it undergoes.
    chemistry
  • A set of controlled observations that test the hypothesis.
    experiment
  • Another name for submicroscopic.
    atomic
  • Matter or not? - Light
    not
  • Another word for substance.
    chemical
  • What is the fourth step of the scientific method?
    create/run an experiment
  • Ozone _______ ultraviolet radiation.
    absorbs
  • What does CFC stand for?
    chlorofluorocarbon
  • Matter or not? - Radio wave
    not
  • A tentative, testable statement or prediction about what has been observed.
    hypothesis
  • Earth's _______ is made up of several layers.
    atmosphere
  • Anything that has mass and takes up space.
    matter
  • A systematic approach used in scientific study.
    scientific method
  • What is the seventh step of the scientific method?
    draw a conclusion
  • Ozone is made out of _______ _______ being split by UV rays.
    oxygen gas
  • A practical application of scientific information.
    technology
  • A measurement that reflects the amount of matter.
    mass
  • A relationship in nature that is supported by many experiments.
    scientific law
  • Matter that has a definite and uniform composition.
    substance
  • The layer of the atmosphere above the troposphere is called the _______.
    stratosphere
  • Matter or not? - Radio
    matter
  • A standard for comparison.
    control
  • Ozone is formed in the _______.
    stratosphere
  • Put in order from largest to smallest: microscopic, submicroscopic, macroscopic.
    macroscopic, microscopic, submicroscopic
  • The variable that you plan to measure.
    dependent variable
  • Information that describes color, odor, shape, or some other physical characteristic.
    qualitative data
  • The lowest level of the atmosphere is called the _______.
    troposphere
  • Research conducted to gain knowledge for the sake of knowledge itself.
    pure research
  • What is the fifth step of the scientific method?
    collect data
  • An organized method of solving a problem.
    systematic approach
  • What is the third step of the scientific method?
    form a hypothesis
  • The variable that you plan to change.
    independent variable
  • Matter or not? - Air
    matter
  • Something that is human-made and does not necessarily occur in nature.
    synthetic
  • An explanation of a natural phenomenon based on many observations and investigations over time.
    theory
  • What is the first step of the scientific method?
    make an observation
  • Research undertaken to solve a specific problem.
    applied research
  • What is the second step of the scientific method?
    ask a question
  • A measure not only of the amount of matter but also of the effect of gravity/s pull on that matter.
    weight
  • A judgement based on the information obtained.
    conclusion
  • What is the sixth step of the scientific method?
    analyze data
  • CFCs are _______ chemicals.
    synthetic
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