Matter - anything with mass and occupies space
accuracy - an indication of how close a measurement is to the correct result
precision - the degree to which a measurement can be replicated
meniscus - the curved top surface of a liquid column
volume - spaced occupied measured in cubic units
density - mass of an object per unit volume
The correct answer is C because a Controlled Experiment tests only one factor at a time and consists of a control group and one or more experimental groups.
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➷ It is because it involves experimentation and observation of the pencil dropping from different heights.
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I believe the answer would be 3( conserved)
The outer core of the earth is about 1,400 miles thick.
