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17 Cards in this Set

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Whats an isotope?
any of two or more species of atoms of a chemical element with the same atomic number nearly identical chemical behavior but with differing atomic mass or mass number and different physical properties
Whats a hypothesis?
a possible answer
What are the 2 main branches of science?
Social and Natural
Whats an atom?
The smallest particle that has the properties of an element.
Whats a pie graph used for?
parts of a whole
Whats pH?
a measure of the hydronium ion concentration in a solution.
List 3 Natural sciences and identify examples of each.
Biology-zooology
Physical-Chemistry
Earth-geology
Whats a theory?
A tested idea
Bases turn blue_____ and red ____?
blue..blue..
Whats a law
observed fact
Acid turns red litmus___ and blue litmus____?
red..red
Whats a base?
A substance that contations hydroxide ions, OH, or reacts with water to form hydroxide ions.
Whats a molecule?
the smallest particle of a substance that retains all the properties of the substance and is composed of one or more atoms
Describe the scientific method.
Observe-Formulate A Question-Collect Data-Form a hypothesis-test the hypothesis-observe-draw a conclusion
How many variables are there supposed to be in a experiment?
1
What is a linegraph used for?
Data that changes
What is a bargraph used for?
Compare data for several items