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Scientific Notation
Carbon Molecule
Water and Ice
Heat and Temperature



What is a Physical Change?

Physical properties are properties of an element or compound that can be observed without a chemical reaction of the substance. Density and electrical conductivity are examples of physical properties.

In a physical change, the substances are not altered chemically. No new products are formed. Chemical bonds are not broken in a physical change

A physical change can affect the size, shape or color of a substance but does not affect its composition. The substances may be changed to another phase (i.e. gas, liquid, solid) or separated or combined.


when ice melts
when sulfur is mixed with iron filings.
breaking a glass
dissolving sugar in water

See Also:

What is a Chemical Change

Assessment Quiz-- Physical and Chemical Change




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