1
CHEMISTRY SEMESTER 1 FINAL CORNELL
LATEST QUESTIONS WITH ANSWERS (100%
CORRECT ANSWERS)
matter Answer: anything that has mass and takes up space, and can be detected by 2 or more
senses
why is chemistry important Answer: everything is matter
theory Answer: explanation of phenomenon based on observations and investigations
scientific law Answer: a relationship in nature supported by many experiments
difference between theory and law Answer: THEORY is the explanation of things or events
based on scientific knowledge resulting from many observations and experiments and LAW is
the statement about how things work in nature that seems to be true consistently.
mass Answer: the amount of matter in an object
weight Answer: A measure of the force of gravity on an object
SI Answer: International System of Units
standard unit and why Answer: an established quantity used for measure and comparison
used bc scientists need data that can be reproduced
temperature Answer: A measure of the average energy of motion of the particles of a
substance.
derived unit Answer: a unit that is defined by a combination of base units
volume Answer: space occupied by object
density Answer: mass/volume
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, 2
conversion factor and use Answer: something that changes units not values (e.g. 1 mile to
5280 feet)
accuracy Answer: how close a measurement is to the true value
precision Answer: a measure of how close a series of measurements are to one another
significant figure Answer: All the digits that can be known precisely in a measurement, plus a
last estimated digit
circle graph Answer: A graph of data where the entire circle represents the whole or 100%
(good for fixed whole)
bar graph Answer: a graph that uses vertical or horizontal bars to show comparisons among
two or more items (good to shpw variation)
line graph Answer: An axis-type graph in which data points are joined by a line. (most
common graph type)
independent variable Answer: deliberately changed
dependent variable Answer: a variable whose value depends on that of another
intrapolation Answer: predicting values of x within the ones used to find the linear model
equation
extrapolation Answer: using previous patterns of numerical data in order to predict values in
the future
scientific method steps Answer: 1. Observation 2. Question 3. Hypothesis 4. Experiment 5.
Analysis 6. Conclusion. 7. Theory 8. Scientific Law
pure substance Answer: A substance made of only one kind of matter and having definite
properties (uniform and unchanging)
solid Answer: definite shape and volume
© 2025 All rights reserved
CHEMISTRY SEMESTER 1 FINAL CORNELL
LATEST QUESTIONS WITH ANSWERS (100%
CORRECT ANSWERS)
matter Answer: anything that has mass and takes up space, and can be detected by 2 or more
senses
why is chemistry important Answer: everything is matter
theory Answer: explanation of phenomenon based on observations and investigations
scientific law Answer: a relationship in nature supported by many experiments
difference between theory and law Answer: THEORY is the explanation of things or events
based on scientific knowledge resulting from many observations and experiments and LAW is
the statement about how things work in nature that seems to be true consistently.
mass Answer: the amount of matter in an object
weight Answer: A measure of the force of gravity on an object
SI Answer: International System of Units
standard unit and why Answer: an established quantity used for measure and comparison
used bc scientists need data that can be reproduced
temperature Answer: A measure of the average energy of motion of the particles of a
substance.
derived unit Answer: a unit that is defined by a combination of base units
volume Answer: space occupied by object
density Answer: mass/volume
© 2025 All rights reserved
, 2
conversion factor and use Answer: something that changes units not values (e.g. 1 mile to
5280 feet)
accuracy Answer: how close a measurement is to the true value
precision Answer: a measure of how close a series of measurements are to one another
significant figure Answer: All the digits that can be known precisely in a measurement, plus a
last estimated digit
circle graph Answer: A graph of data where the entire circle represents the whole or 100%
(good for fixed whole)
bar graph Answer: a graph that uses vertical or horizontal bars to show comparisons among
two or more items (good to shpw variation)
line graph Answer: An axis-type graph in which data points are joined by a line. (most
common graph type)
independent variable Answer: deliberately changed
dependent variable Answer: a variable whose value depends on that of another
intrapolation Answer: predicting values of x within the ones used to find the linear model
equation
extrapolation Answer: using previous patterns of numerical data in order to predict values in
the future
scientific method steps Answer: 1. Observation 2. Question 3. Hypothesis 4. Experiment 5.
Analysis 6. Conclusion. 7. Theory 8. Scientific Law
pure substance Answer: A substance made of only one kind of matter and having definite
properties (uniform and unchanging)
solid Answer: definite shape and volume
© 2025 All rights reserved
