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Simple Experiments: Glossary

C

conclusion
in science, a decision, result or outcome based on observation. A conclusion is why you think something happened
control
things that are not changed in an experiment

E

experiment
a test that is made under controlled conditions to demonstrate a known truth, or examine the validity of a theory or hypothesis

H

hypothesis
a tentative explanation that is made by carefully examining observations or a set of facts and making an educated guess as to what the outcome might be

L

laboratory notebook
a journal kept during an experiment that contains all of your important ideas and information

M

material
an item needed to conduct an experiment

O

observation
looking at or watching things to find how they look or act

P

problem
a question to be solved or answered
procedure
a step to follow to conduct a controlled experiment

R

result
something that happens during an experiment

T

theory
a scientifically acceptable general principle or body of principles that explains a set of phenomena

V

variable
one thing that is changed in an experiment
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