Chemical and Physical Changes

Changes in Matter

•Changes can
be either
physical
changes or
chemical
changes.

Physical Changes

• Reversible change in the physical
properties of a substance, as size, shape,
or state of matter.
•No new substance formed

Physical Changes

Examples
✔Cutting or breaking into smaller pieces
✔Molding or bending to change shape
✔Changing state of matter; freezing,

melting, evaporating, etc.

✔Dissolving

Chemical Changes

• Usually irreversible chemical reaction
•Rearrangement of the atoms of one or
more substances
• A change in their chemical properties or
composition
•New substance formed

Drag and Drop

Which of the following are physical changes?​

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Drag these tiles and drop them in the correct blank above

ice melting

iron rusting

Dropdown

Which of the following is a chemical change?​

Select answer