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57 Cards in this Set
- Front
- Back
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SI Unit of Temperature
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K
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SI Unit of Time
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second
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SI Unit of Length
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meter
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SI Unit of Mass
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kilogram
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Worldwide System of Measurement
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SI
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Amount of Material in an Object
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mass
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Derived Unit of Volume
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cubic centimeter
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SI Prefix meaning 0.01
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centi
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SI Prefix meaning 0.001
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milli
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SI Prefix meaning 1,000
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kilo
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Plotted on the vertical or y-axis
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dependent variable
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Plotted on the horizontal or x-axis
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independent variable
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composition variable
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mixture
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composition definite
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substance
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all atoms are the same
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element
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has mass, takes up space
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matter
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2 or more elements combined
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compound
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How many meters are there in 1,865 cm?
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18.65
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A beaker contains 0.32 L of water. What is the volume of this water in milliliters?
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320 mL
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A box is 25 cm long, 6cmwide, and 4 cm high. How many cubic centimeters of water can it hold.
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600
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In a graphshowing temperature change of a material over time, temperature change is ___.
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dependent variable
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The best type of graph to show how some fixed quantity if broken down int parts is ___.
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cicle graph
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One benefit of the SI system is that it is ___.
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based on multiples of ten
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The process of gathering information through the senses is called __.
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observation
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When designing an experiment, the 1st step---
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state the problem
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A rule or principle that describes what happens in nature is ___.
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scientific law.
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An explanation of an event that is based on repeated observation and experiments is a __.
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theory
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An idea, event, or object can be represented by a ___ to help people better understand it.
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model
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In an experiment to determine whether the popping of popcord is affected by the temperature at which it is stored, counting the popped kernels is an example of ___.
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observation
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A standard for comparison that helps to ensure that the experimental result is caused by the condition being tested is the ___.
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control
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A factor in an experiment that changes from the manipulation of the independent variable is the ___.
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dependent variable
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A factor that does NOT change in an experiment is the ___.
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constant
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Studing the effect of one thing on another in order to test a hypothesis is ___.
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experiment
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A factor that is manipulated in an experiment to change the dependent variable is the __.
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independent variable.
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The application of scientific knowledge to help people is ___.
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technology
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Each inner energy level of an atom has a maximum number of ___ it can hold.
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electrons
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Dot diagrams are used to represent.
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outer level electrons
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Particles of matter that make up protons and neutrons are ___.
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quarks
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A chemical symbol represent the ___ of an element.
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name
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Horizontal rows of periodic table are called ___.
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periods
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Atoms of the same element with different numbers of neutrons are called ___.
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isotopes
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A particle that moves around the nucleus is __.
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electrons
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Elements that are gases, are brittle, and are poor conductors at room temperature are ___.
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nonmetals
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A --- is used to accelerate protons in the study of subatomic particles.
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tevatron
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A certain atom has 26 protons, 26 electrons, and 30 neutrons. It mass number is ___.
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56
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In a certain formula, the number of each type of atom in the compound is shown by numbers called ___.
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subscripts
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A group of covalently bonded atoms that acts together as one charged atom is a ___.
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polyatomic ion
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The elements that make up a compound and the exact number of atoms of each element in a unit of the compound can be shown in a ___.
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chemical formula
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A chemical bond that occurs when atoms share electrons is a __-.
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covalent
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The ___ tells you how many electrons an atom must gainm lose, or share to become stable.
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oxidation number
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How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?
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8
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What is the total number of atoms in the compound Ca(CIO )
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9
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What is the name of the compound with the formula NaCI
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sodium chloride
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Why do the noble gases NOT form compounds readily?
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Their outer energy levels are completely filled with electrons.
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Explain why the noble gases are stable.
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Their outer energy levels are full.
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Compare the masses of protons, electrons, and neutrons.
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The mass of a proton and a neutron are about the same and the electron is about 1836 times smaller.
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Explain what a chemical bond is.
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A chemical bond is the force that holds atoms together in a compound.
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