Physical and Chemical Changes

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not alter the chemical composition of a substance, while chemical changes result in the formation of new substances.

Front

What physical property can be used to separate a mixture of sand and gravel?

Back

Size.

Front

What is a method to separate a mixture using physical properties?

Back

Using a filter to separate sand from water.

Front

What indicates that a chemical change has occurred when heating a solid?

Back

A change in color, such as from white to amber.

Front

What term describes matter with specific properties?

Back

Substances.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is an example of a chemical change?

Back

Rusting of iron.

Front

What is the definition of a mixture?

Back

A combination of two or more substances that retain their individual properties.

Front

How can you identify a chemical change?

Back

By observing changes such as color change, gas production, or temperature change.

Front

What is filtration?

Back

A process used to separate solids from liquids using a filter.