test
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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anything that has mass and takes up space | matter
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the study of the properties of matter and how matter changes | chemistry
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a single kind of matter that is pure, meaning it always has a specific makeup—or composition—and a specific set of properties | substance
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a characteristic of a pure substance that can be observed without changing it into another substance | physical property
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a characteristic of a pure substance that describes its ability to change into different substances | chemical property
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a pure substance that cannot be broken down into any other substances by chemical or physical means | element
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is the basic particle from which all elements are made | atom
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a force of attraction between two atoms | chemical bond
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groups of two or more atoms held together by chemical bonds | molecule
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a pure substance made of two or more elements chemically combined in a set ratio | compound
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shows the elements in the compound and the ratio of atoms | chemical formula
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made of two or more substances, elements, compounds, or both—that are together in the same place but are not chemically combined | mixture
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A mixture in which pure substances are unevenly distributed throughout the mixture. | heterogeneous mixture
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A mixture in which substances are evenly distributed throughout the mixture. | homogeneous mixture
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an example of a homogeneous mixture | solution
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a measure of the force of gravity on you | weight
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the measurement of the amount of matter in the object | mass
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The system of units (SI) used by scientists to measure the properties of matter. | International System of Units
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The amount of space that matter occupies | volume
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relates the mass of a material in a given volume | density
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any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance | physical change
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A change in matter that produces one or more new substances | chemical change
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has a definite shape and a definite volume | solid
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Solids that are made up of crystals | crystalline solid
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the particles are not arranged in a regular pattern | amorphous solid
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has a definite volume but no shape of its own | liquid
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meaning “a substance that flows.” | fluid
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the result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together | surface tension
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a liquid’s resistance to flowing | viscosity
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A state of matter with no definite shape or volume. | gas
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The change in state from a solid to a liquid | melting
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The temperature at which a substance changes from a solid to a liquid; the same as the freezing point, or temperature at which a liquid changes to a solid. | melting point
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The change of state from liquid to solid | freezing
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The change from a liquid to a gas | vaporization
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The process that occurs when vaporization takes place only on the surface of a liquid. | evaporation
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occurs when a liquid changes to a gas below its surface as well as at the surface | boiling
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The temperature at which a liquid boils | boiling point
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The opposite of vaporization | condensation
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occurs when the surface particles of a solid gain enough energy that they form a gas | sublimation
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the very small center core of an atom | nucleus
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have a positive electric charge (indicated by a plus symbol, +) | proton
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have no charge | neutron
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move rapidly around the nucleus and have a negative electric charge | electron
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the number of protons in its nucleus | atomic number
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Atoms with the same number of protons and a different number of neutrons | isotope
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the sum of the protons and neutrons in the nucleus of an atom | mass number
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may be a diagram, a mental picture, a mathematical statement, or an object that helps explain ideas about the natural world | model
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the average mass of all the isotopes of that element | atomic mass
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A chart of the elements showing the repeating pattern of their properties. | periodic table
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A one- or two-letter representation of an element. | chemical symbol
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Created by:
statclar
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