Physical and Chemical Changes Zero/Low Grade

What is a physical change?

• A change that results in the formation of new substances

• A change in the physical state of a substance without forming a new substance

• A change that can only be observed by changing the identity of a substance

• A change that involves the explosion of fireworks

Which of the following is an example of a physical change?

• Baking a cake

• Souring milk

• Cutting your hair

• Metal rusting

What is a physical property?

• A characteristic that results in a new substance

• A characteristic that can only be observed by changing the identity of a substance

• A characteristic that is observed or measured without changing the identity of a substance

• A characteristic that involves combustion

Tags

NGSS.MS-PS1-4

Which of the following is NOT a physical property?

• Color

• Flammability

• Texture

• Ductility

What is a chemical change?

• A change that does not result in a new substance

• A change that results in the formation of new chemical substances

• A change in the physical state of a substance

• A change that can be easily reversed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is an example of a chemical change?

• Melting a piece of chocolate

• Painting a wooden fence

• Explosion of fireworks

• Cutting your hair

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a chemical property?

• A characteristic that is observed without changing the identity of a substance

• A characteristic that can only be observed by changing the identity of a substance

• A characteristic that involves melting

• A characteristic that involves cutting

Which of the following is NOT a chemical property?

• Ability to rust

• Ability to tarnish

• Color

• Combustibility

What question should you ask to identify the type of change?

• Is the substance melting?

• Is the substance changing color?

• Was a new substance created?

• Is the substance being cut?

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If a new substance is created, what type of change has occurred?

• Physical change

• No change

• Chemical change

• Reversible change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5