Introduction to Chemistry
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each of the black spaces below before clicking
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| chemistry | the study of matter and how it changes
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| matter | anything that has mass and takes up space
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| substance | matter that has specific composition and properties
(aka: chemical)
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| mass | the amount of matter
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| model | a visual representation of something
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| weight | mass + gravitational force
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| quantitative data | information that describes how much, how tall, how fast, how little (numbers)
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| qualitative data | information that describes odour, colour, taste, shape or other physical properties (language)
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| hypothesis | a testable statement made about what has been observed
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| experiment | an activity that allows you to create controlled observations to test a hypothesis
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| conclusion | a judgement that is made based on the information obtained from the experiment
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| independent variable | the variable that is changed during an experiment
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| dependent variable | the variable that changes because of a change in the experiment
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| control | the standard that is used for comparison in an experiment; nothing about it is changed
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| scientific law | a relationship in nature that is supported by many experiments
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| theory | an explanation that is supported by many experiments but can be changed with new information; if it can be used to make predictions that are proven true, it is seen as correct
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| applied research | research that is conducted for a specific reason or to solve a specific problem
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| chance discovery | scientific discovery that happens by accident; it is not intended
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| pure research | research that is conducted because of curiosity or interest
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| synthetic | something that is human-made and may not occur in nature
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| technology | a practical use of scientific information
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| scientific method | the organised process used by scientists to do research and verify the work of others
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| base unit | a unit that is based on an object or event in the physical world
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| derived unit | a unit that is based on two or more other 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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| dimensional analysis | an approach to problem solving that uses conversion factors to move between units
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| conversion factors | a ratio of equal values with different units
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| density | a physical property of matter; the amount of mass per unit of volume
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| volume | the space occupied by an object
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| interpolation | estimating an unknown value that is between two known values
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| extrapolation | estimating an unknown value that is outside the known values
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| macroscopic | large enough to be seen without any assistance
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| microscopic | too small to be seen without a microscope
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| submicroscopic | too small to be seen without using a specialised microscope
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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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Created by:
nursprung
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