Unit 3 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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| Weight | The measure of the gravitational force on an object.
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| Element | This is made up of one or more of the same kind of atom chemically combined.
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| Mixture | Contains a variety of elements and compounds that are not chemically combines with each other.
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| Compound | Made up of different kinds of atoms chemically combined.
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| Electron | A subatomic particle that has a negative charge. (-)
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| Chemical Symbol | A one, two, or three letter abbreviation of the name of an element. Examples Ca, O, and N.
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| Proton | Subatomic particle that has a positive charge and is located in the nucleus of the atom. (+)
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| Neutron | A subatomic particle that has no charge.
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| Atomic Number | The number of protons in the nucleus of an atom. This is the same number for all atoms of an element.
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| Pure Substance | A sample of matter, either a single element of a single compound, that has a definite chemical and physical properties.
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| Atom | The smallest unit of an element that maintains the properties of that element. The building block of matter
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| Density | The ratio of the mass of a substance to the volume of a substance. D=M/V
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| Mass | It describes the amount of matter in an object.
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| Matter | Anything that has mass and takes up space.
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| Physical Property | A characteristic of a substance that can be observed or measured without changing the identity of the substance. Types are density, conductivity, solubility, malleability, magnetic, melting points, hardness.
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| Volume | The amount of space that an object takes up, or occupies. V=M/D or V=lwh
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| Chemical Property | A characteristic that describes a substance's ability to change into a new substance with different properties. Types include flammability, reactivity with other substances, ability to ruse.
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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.
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.
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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