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28 Cards in this Set
- Front
- Back
What is a homogeneous mixture?
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A mixture that is evenly mixed throughout.
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What is a heterogeneous mixture?
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A mixture that is not mixed evenly and each component retains it own properties.
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What is a solution?
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A mixture in which one substance is completely and evenly mixed in another substance and is the same throughout.
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A physical property of matter that can be determined by dividing the mass of an object by it volume.
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Density
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Matter
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Anything that has mass and takes up space.
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Atoms of the same element that have different numbers of neutrons.
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Isotopes
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Ion
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An electrically charged atom whose charge results from an atom losing or gaining electrons.
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What is another name for a personal opinion?
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Bias
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What is Earth Science
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Study of earth and space, including rocks, fossils, climate, volcanoes, land use, ocean water, earthquakes and objects in space.
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What is the mass number?
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The number of protons plus the number of neutrons in an atom.
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Mixture
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Two or more substances that retain theri own properties even when they are combined and that can be separated from one another by physical means.
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Study of moral values about what is good or bad.
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Ethics
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A rule that describes the behavior of something in nature, usually describes what will happen in a situration but not why it happens.
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Scientific law
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Proton
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Positively charged particle that is located in the nucleus of an atom.
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Constant
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A variable that does not change in an experiment.
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Standard for comparison in an experiment.
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Control
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Electron
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A Negatively charged particle that moves around the nucleus of an atom and form an electron cloud.
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What is technology?
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The use of scientific discoveries for practical purposes, making people's lives easier and better.
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Neutron
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Particle without an electric charge that is located in the nucleus of an atom.
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Factor that changes in an experiment
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Independent variable
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An explanation that is supported by results from repeated experimentation or testing.
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Scientific Theory
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Steps in the Scientific Method
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Problem?Question
Gathering information Hypothesis Testing Analyzing Conclusion |
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Factors that can be changed in an experiment
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Variables
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Matter that is made up of two or more elements and has physical and chemcial properties different from each of the elements that make it up.
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Compound
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The number of protons in an atom?
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Atomic number
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An educated guess
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Hypothesis
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A substance that contains only one type of atom.
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Element
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Tiny building blocks of matter, made up of protons, neutrons, and electrons.
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Atoms
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