Chapter 1: The Science of Chemistry
What is Chemistry? (In other words…)
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Chemistry is known as the ______________________ science.
________________________ scale: seen with the naked eye
________________________scale: cannot be seen with the naked eye.
Test question: Explain the connection between macroscopic and microscopic worlds. In your own worlds
with an example other than a pond.
A central idea in science is that our universe obeys a set of __________________________________.
The primary goal of science is to discover the natural laws hidden in the behavior of the universe. The
primary way we accomplish this is through the process of ______________________.
A ___________________ is a tentative explanation or conclusion about the physical world.
Hypothesis can use _______________ statements.
Test question: Given a scenario, come up with a hypothesis.
A scientific _________________is a comprehensive and well-tested explanation of a natural or physical
phenomenon.
The term __________________________ describes ideas that are often presented as scientific but are
not supported by scientific evidence.
The ______________________________ is the formal, logical thought process of science.
Steps of the Scientific Method:
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The variable changed by the conductor of the experiment is the ____________________ variable
The variable changed by the experiment is the ______________________ variable
Identify the independent and dependent variable in each testable question below:
a. Which soil type will produce the tallest green bean plants?
b. Does fuel economy change at different speeds?
c. Does pasta cook faster in salty water or in pure water?
Chapter 1: Section 2
Matter and Energy
A __________________________________ is a specific kind of information that describes a physical
quantity with both a number and a unit.
The world of science adopted a common system of measurement called
the _________________________ and is abbreviated as SI.
___________________________ is a measure of how much matter is in an object.
___________________________ is the force of gravity acting on mass.
Why do scientist around the world use mass instead of weight?
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_____________________ is an amount of space having length, width and height.
Measurements of volume are in the ________________________________________________.
_____________________ describes how much mass is in a given volume of a material.
Equation of Density:
Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill
the cylinder weighs 306.0 g. From this information, calculate the density of mercury.
Find the mass of 250.0 mL of benzene. The density of benzene is 0.877 g/mL.
State the Law of Conservation of Energy:
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