a single kind of matter that is pure and always has a specific makeup
What is a substance?
100
the axis where the dependent or responding variable is plotted
What is the Y- axis?
100
the distance between two points
What is length?
100
pure substance that cannot be broken down into any other substances by chemical or physical means
What is an element?
100
the study of the properties of matter and how matter changes
What is chemistry?
200
a group of two or more atoms held together by chemical bonds
What is a molecule?
200
the axis where the independent or manipulated variable is plotted
What is the X- axis?
200
the amount of matter an object has
What is mass?
200
a pure substance made up of two or more elements chemically combined in a set ratio
What is a compound?
200
the basic particle from which all elements are made
What is an atom?
300
a characteristic of a pure substance that can be observed without changing it into another substance
What is a physical property?
300
variables that are not graphed, but could affect the results of the experiment; they are always kept the same to keep the experiment fair.
What is a controlled variable?
300
the amount of space an object takes up
What is volume?
300
substance made up of two or more substances, elements, compounds, or both that are together in the same place but are not chemically combined
What is a mixture?
300
a tiny, negatively charged particle that moves around the nucleus of an atom
What is an electron?
400
mixture in which pure substances are unevenly distributed throughout
What is a heterogeneous mixture?
400
a variable whose value depends on that of another; it is measured during the experiment.
What is a dependent variable?
400
the unit that measures the volume of a solid
What are cubic centimeters?
400
an example of a homogeneous mixture that forms when substances dissolve
What is a solution?
400
a small, positively charged particle in the nucleus of an atom
What is a proton?
500
chemical symbols showing elements in the compound and the ratio of the atom
What is a chemical formula?
500
a variable that causes change as you make changes to it; it is what is being tested during the experiment.
What is an independent variable?
500
the method that states the following:
When you go down the steps, move the decimal place to the right. When you go up the steps, move the decimal to the left.
What is DRUL?
500
characteristic of a pure substance that describes its ability to change into a different substance
What is a chemical property?
500
the central core of an atom containing protons and neutrons