7th Grade Chemistry Vocabulary
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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| Element | a pure substance that cannot be speartated into simpler substances by physical or chemical means
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| Compound | a pure substance composed of two or more elements that are chemically combined
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| Molecule | a neutral group of atoms held together by covalent bonds
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| Chemical Property | a property of matter that describes a substance based on its ability to change into a new substance with different properties
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| Physical Property | a property of matter than can be observed or measured without changing the identity of the matter
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| Mixture | a combination of two or more substances thata are not chemically combined
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| Solution | a mixture that appears to be a single substance but is composed of particles of two or more substances that are distrubuted evenly throughout the mixture
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| Malleable | able to be pounded into thin sheets withoug shattering
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| Ductile | able to drawn or pulled into a wire
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| Soluble | the ability to dissolve in another liquid
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| Conductivity | able to carry an electrical current
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| Density | the amount of matter in a given space or volume; the mass per unit volume of a substance
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| Chemical Change | the composition of matter changes
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| Physical Change | the composition of matter stays the same but the appearance changes in some
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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