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Physical Sci Midterm

Practice for the midterm

QuestionAnswer
An "if/then" statement that answers a question. hypothesis
What you COMPARE your results to in an experiment. Example: while testing the effects of fertilizer on plant growth, you compare your plants growth to the plant you did not put special fertilizer in. control
The parts of an experiment that never change. Ex: performed experiment at the same time, in the same room, every Wednesday. constants
WHEN you are actually measuring and performing/looking at your experiment. Ex: when testing the effects of fertilizer on plant growth, the physical act of you taking a tape measure and SEEING the length of the plant. observation
Anything in the experiment that you change variable
the variable you measure, dependent variable
elements and compounds are.... pure substances
two types of mixtures are... heterogeneous and homogeneous
definite shape and volume, particles closely packed together and move slow solids
definite shape and no definite volume, particles close together and SLIDE past each other
NO definite shape and NO definite volume, particles far apart and move quickly gas
Found in the nucleus of an atom neutrons and protons
Found in the outer energy shells of an atom electrons
Created by: rgrabowski
Popular Physical Science sets

 

 



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