Physical and Chemical Properties and Changes

Front

What is a physical change?

Back

A physical change is a change in the size, shape, or state of matter without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a process where one or more substances are transformed into new substances with different properties.

Front

Give an example of a physical change.

Back

An example of a physical change is ice melting into water.

Front

What indicates a chemical change has occurred?

Back

A clue that a chemical change has occurred is the formation of a new substance.

Front

What happens to water when it freezes?

Back

When water freezes, it undergoes a physical change to become ice.

Front

What is the difference between physical and chemical properties?

Back

Physical properties can be observed without changing the substance, while chemical properties can only be observed during a chemical reaction.

Front

What is an example of a chemical property?

Back

An example of a chemical property is flammability.

Front

What is meant by 'state of matter'?

Back

State of matter refers to the distinct forms that different phases of matter take on, such as solid, liquid, gas, and plasma.

Front

What is an example of a chemical change?

Back

An example of a chemical change is rust forming on iron.

Front

What is a clue that a physical change has occurred?

Back

A clue that a physical change has occurred is a change in size or shape.