Test 1
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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| Chemistry | the study of matter and the changes that it undergoes
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| Substance | matter that has a definite and uniform composition
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| Mass | measurement that reflects the amount of matter
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| Weight | measure of the amount of matter and of the effect of Earth's gravity on that measure
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| Scientific method | systematic approach used in scientific study to verify the work of others
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| Qualitative data | observations of the senses
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| Quantitative data | observations of measurements
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| Hypothesis | tentative explanation of what ha been observed
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| Experiment | set of controlled observations that test the hypothesis
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| Independent variable | variable that will change
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| Dependent variable | variable that has a value change in response to a change in the independent variable
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| Control | Standard for comparison
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| Scientific law | relationship in nature that is supported by many experiments
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| Base unit | defined unit in a system of measurement
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| Derived unit | combination of base units
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| Density | physical property of matter
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| Dimensional analysis | systematic approach to problem solving that uses conversion factors to move from one unit to another
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| Conversion factor | ratio of equivalent values having different units
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| Accuracy | how close a measured value is to an accepted value
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| Precision | how close a series of measurements are to one another
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| Phase change | transition of matter from one state to another
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| Mixture | combination of two or more pure substances where each substance retains its chemical properties
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| Solution | homogeneous mixture
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| Homogeneous mixture | mixture that has constant composition and is blended together; cannot separate
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| Heterogeneous mixture | does not blend smoothly; is able to be separated
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| Element | pure substance that cannot be separated into simpler substances by physical or chemical means
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| Compound | made up of two or more different elements that are chemically combined
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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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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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Created by:
Jaspergem
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