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Unit 1 -Methods & Measures
Terms in this set (40)
A logical, systematic approach to the solution of a scientific problem
A group of interacting, interrelated, or interdependent elements or parts that function together as a whole to accomplish a goal.
A representation of an object or event
an explanation using an integrated set of principles that organizes observations and predicts behaviors or events
eating away gradually
a substance that causes slight inflammation or other discomfort to the body
highly unstable; explosive
variable (often denoted x) that is manipulated
a variable (often denoted by y ) whose value depends on that of another.
how close a measurement is to the true or accepted value
how close measurements of the same item are to each other
the study of matter and how it changes
Information obtained through the senses.
A statement that describes what scientists expect to happen every time under a particular set of conditions
Data in the form of words
evidence; information gathered from observations
Curved surface of liquid
Anything that has mass and takes up space
A substance made of only one kind of matter and having definite properties.
A combination of two or more substances that are not chemically combined
A pure substance made of only one kind of atom
A pure substance made up of atoms of two or more different elements joined by chemical bonds
of the same kind
composed of unlike parts; different; diverse
Basic unit of matter
A group of atoms chemically bonded together
shows the elements in the compound and the ratio of atoms
the amount of matter in an object
triple beam balance
instrument used to measure mass
The ability to dissolve in another substance
used to transfer small amounts of liquid
A measure of the average energy of motion of the particles of a substance.
a lipped cylindrical glass container for laboratory use.
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