Physical Science

Front

What are chemical properties?

Back

Chemical properties are characteristics of a substance that can only be observed when it undergoes a chemical change, resulting in the formation of a new substance.

Front

What is a chemical change?

Back

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

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.

Front

Give an example of a chemical change.

Back

Baking a cake is an example of a chemical change, as the ingredients undergo a chemical reaction to form a new product.

Front

Give an example of a physical change.

Back

Squeezing oranges to make orange juice is an example of a physical change, as the juice is still orange juice and the chemical composition remains the same.

Front

What happens during a chemical change?

Back

During a chemical change, bonds between atoms are broken and new bonds are formed, resulting in the creation of new substances.

Front

What happens during a physical change?

Back

During a physical change, the form or appearance of a substance changes, but its chemical identity remains the same.

Front

Is rusting a chemical or physical change?

Back

Rusting is a chemical change because it involves the reaction of iron with oxygen to form rust, a new substance.

Front

Are fireworks exploding a physical or chemical change?

Back

Fireworks exploding is a chemical change because it involves a chemical reaction that produces light, sound, and new substances.

Front

What is the difference between physical and chemical properties?

Back

Physical properties can be observed without changing the substance's identity, while chemical properties can only be observed during a chemical change.