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3rd Nine Weeks Exam
OL Review
| Term | Definition |
|---|---|
| Convergent boundary | A tectonic boundary where two plates are moving toward each other. |
| Divergent boundary | A tectonic boundary where two plates are moving away from each other and new crust is forming from magma that rises to the Earth's surface between the two plates. |
| Transform boundary | A transform boundary is a fault zone where two plates slide past each other horizontally. |
| Oceanic crust | The relatively thin part of the earth's crust that underlies the ocean basins. |
| Continental crust | The relatively thick part of the earth's crust that forms the large landmasses. It is generally older and more complex than the oceanic crust. |
| Element | Matter that is made up of only one type of atom. |
| Pure Substance | Matter that is made of the same element or compounds. |
| Compound | Molecules that are made from different types of atoms, BUT always combined in the same proportions. |
| Chemical Symbol | An abbreviation or short representation of a chemical element |
| Periodic Table of Elements | A table of elements, arranged by atomic number, that shows the patterns in their properties. |
| Metal | A solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity |
| Nonmetal | An element or substance that is not a metal. |
| Metalloid | An element whose properties are between those of metals and nonmetals. |
| Ductile | The ability to be drawn out into a thin wire. |
| Luster | Refers to the way an objects surface reflects light. |
| Conductivity | The degree to which a specified material conducts electricity. |
| Malleability | Refers to the way most metals can be hammered or rolled into thin sheets. |
| Physical Property | Is a characteristic of matter that may be observed and measured without changing the chemical identity of the object. |
| Chemical property | Is a characteristic or behavior of a substance that may be observed when it undergoes a chemical change or reaction. |
| Chemical change | A usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance. |
| GHS Labels | Presents important information about the chemical hazards in your workplace. |
| SDS | A document that lists information relating to occupational safety and health for the use of various substances and products. |
Created by:
DDenney
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