Chemistry Chapter 4
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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| Hypothesis | a testable statement
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| Theory | a broad generalization that explains a body of facts or phenomena
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| Derived Unit | combinations of SI base units
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| Density | the ratio of mass to volume, or mass divided by volume
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| Accuracy | refers to the closeness of measurements to the correct or accepted value of the quantity measure
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| Direct Proportion | two quantities are directly proportional to each other is dividing one by the other gives a constant value
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| Precision | refers to the closeness of a set of measurements of the same quantity made in the same way
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| Scientific Method | a logical approach to solving problems by observing and collecting data, formulating hypotheses, testing hypotheses and formulating theories that are supported by data
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| Model | a model in science is more than a physical object; it is often an explanation of how phenomena occur and how data or events are related
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| SI | A single measurement system called Le Système International d'Unités
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| Quantity | something that has magnitude, size or amount
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| Inverse Proportion | two quantities are inversely proportional if their product is constant
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| Percent Error | calculated by subtracting the experimental value from the accepted value, dividing the difference by the accepted value, and then multiplying by 100
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| System | a specific portion of matter in a given region of space that has been selected for study during an experiment or observation
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| Conversion Factor | a ratio derived the equality between two different units that can be used to convert from one unit to the other
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| Weight | a measure of the gravitational pull on matter
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| Volume | the amount of space occupied by an object
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| Significant Figures | consist of all the digits known with certainty plus one final digit, which is somewhat uncertain or is estimated
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| Scientific Notation | numbers written in the form M x 10^n, where the factor M is a number greater than or equal to 1 but less than 10 and n is a whole number .
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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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