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Grade 5 Unit B Ch 1
Scott Foresman Unit B Ch 1 Vocabulary
| Term | Definition |
|---|---|
| Atom | The smallest particle of an element that has the properties of the element. |
| chemical change | a change that produces new substances with new properties. |
| chemical property | describes the way a substance reacts with other substances. |
| chemical reaction | a process that produces one or more substances that are different from the original substances. |
| compound | a substance made up of atoms of more than one element. |
| electron | particle in an atom that has a negative electrical charge. |
| element | a substance that cannot be broken down into other substances by heat, light, or electricity. |
| mixture | two or more substances that are mixed together but can be separated out because their atoms are not combined. |
| molecule | two or more atoms joined together; the smallest unit of many substances. |
| neutron | Particle in an atom that has no charge. |
| nucleus | the center of an atom, where protons and neutrons are located. |
| Periodic Table | a chart that classifies elements by their properties. |
| physical change | a change in one or more physical properties. |
| physical property | a way of describing an object using traits that can be observed or measured without changing the substance into something else. |
| proton | particle in an atom that has a positive electrical charge. |
| solution | a mixture in which a substance breaks up into its most basic particles, which are too small to be seen, and spreads evenly through another substance. |
Created by:
DawnSimpson
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