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Definition
| The smallest unit of matter that can exist and keep its chemically unique characteristics. |
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| A mixture whose composition varies throughout. |
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| A mixture whose composition is the same throughout. |
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| The closeness of an experimental measurement to the true value. |
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| The amount of energy required to raise the temperature of 1 gram of water 1 degree Celsius. |
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| A representation showing both the identity and number of elements in a compound. |
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| A chemist's shorthand for representing a chemical reaction. It shows reactants and products, and often chemical conditions. |
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| A change involving the reaction of one or more substances to form one or more new substances; identity of substances is changed. |
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| The one- or two- letter abbreviation for for an element found on the periodic table. |
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| (a) A number used as a multiplier in scientific notation. (b) A number preceding a chemical formula in a chemical reaction. |
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| A pure substance made up of two or more elements that are chemically joined together. |
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Definition
| Energy is neither created nor destroyed. it merely changes forms. |
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Definition
| Matter is neither created nor destroyed. It merely changes forms. |
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Definition
| An equivalency written in the form of a fraction showing the relationship between two units. |
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| The comparison of a substance's mass to it's volume. |
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| A tool to convert between equivalent units of the same quantity. |
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Definition
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Definition
| The simplest type of matter; a pure substance composed of only one type of atom. |
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Definition
| Two quantities that can be related to each other with an equal sign. |
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Definition
| A state of matter composed of particles that are not associated with each other and are rapidly moving, giving the substance no definite volume or shape. |
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Definition
| The base metric unit for measuring mass; roughly equivalent to the mass of a paper clip or raisin. |
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Definition
| One of the vertical columns of elements on the periodic table. |
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Definition
| Kinetic energy flowing from a warmer body to colder one. |
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Definition
| A state of matter composed of particles that are loosely associated and freely moving, giving the substance a definite volume, but no definite shape. |
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| The base metric unit for measuring volume; about 6% larger than a quart. |
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| The measure of the amount of material in an object. |
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Definition
| Anything that takes up space and has mass. |
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| The base metric unit for measuring length; approximately 10% large than a yard. |
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Definition
| A combination of two or more substances. |
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Definition
| One of the horizontal rows of elements on the periodic table. |
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Definition
| A change in the state of matter, but not its identity. |
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Definition
| The closeness of a set of measurements to each other. |
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Definition
| The new substance(s) Produced by a chemical reaction; shown on the right of a chemical equation. |
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Definition
| Contains only one type of substance. |
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Definition
| The substance(s) that react to form different substance(s) in a chemical reaction; shown on the left side of a chemical equation. |
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Definition
| The digits in any measurement that are known with certainty plus the first estimated digit. |
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Definition
| A state of matters composed of particles that are arranged orderly and have very little motion, giving the substance a definite shape and definite volume. |
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Definition
| The amount of heat needed to raise the temperature of exactly 1 gram of a substance by exactly 1 °C. |
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Definition
| The physical form in which a substance exists, either solid, liquid, or gas. |
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Definition
| The preferred system of units for measurement in science, which includes the metric system. |
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Definition
| A measure of the hotness or coldness of a substance. The three scales of this are Celsius, Fahrenheit, and Kelvin. |
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| The amount of space occupied by a substance. |
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