Physical Science Review

Front

What is a Physical Change?

Back

A Physical Change is a change that affects one or more physical properties of a substance without altering its chemical composition. Examples include cutting, freezing, and melting.

Front

What is a Chemical Change?

Back

A Chemical Change is a change that results in the formation of new chemical substances. Examples include baking, rusting, and burning.

Front

What happens to water when it freezes?

Back

When water freezes, it undergoes a Physical Change from liquid to solid (ice).

Front

What is a Series Circuit?

Back

A Series Circuit is a type of electrical circuit in which the components are connected end-to-end, so that the current flows through each component in turn.

Front

What is a Parallel Circuit?

Back

A Parallel Circuit is a type of electrical circuit in which the components are connected across common points or junctions, allowing current to flow through multiple paths.

Front

Example of a Physical Change: Cutting an Orange

Back

Cutting an orange into wedges is a Physical Change because the chemical composition of the orange remains the same.

Front

Example of a Chemical Change: Baking a Cake

Back

Baking a cake is a Chemical Change because it involves a chemical reaction that transforms the ingredients into a new substance.

Front

What is the difference between Physical and Chemical Changes?

Back

Physical Changes do not change the chemical composition of a substance, while Chemical Changes do.

Front

What is an example of a Physical Change involving water?

Back

An example of a Physical Change involving water is when ice melts into liquid water.

Front

What is an example of a Chemical Change involving food?

Back

An example of a Chemical Change involving food is when bread is baked, resulting in a new texture and flavor.