When one observes the phase of matter of water, one observes a D. physical property of matter. Physical properties are characteristics that can be observed or measured without changing the substance's chemical composition.
Water is a very unique substance because it can exist in all three phases of matter (solid, liquid, gas) within the normal temperature ranges found on Earth.
When one observes the phase of matter of water, one observes a property of matter.
A.
chemical
B.
biological
C.
geological
D.
physical
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