5.P.2.3 Physical & Chemical Changes

Jennifer left her bike outside, buried in snow. In the spring, when the snow melted, she found her bike covered in rust. Which best describes the change to the bike? 

• It was a chemical change, because the bike was a different color. 
• It was a chemical change, because the rubber tires were deflated. 
• It was a chemical change, because rust can be removed from the metal. 
• It was a chemical change, because rust is a new substance on the metal. 

Tags

NGSS.MS-PS1-2

A piece of wood is sawed into several small pieces. This is an example of what kind of change? 

• physical
• chemical
• electrical
• mechanical

Which is an example of a chemical change? 

• baking a cake
• freezing water
• crushing a can
• breaking an egg

Tags

NGSS.5-PS1-4

Which of the following would be considered a physical change?

• Cutting paper

• pH test

• Burning marshmellow

• Roasting a Turkey

Wood that is burning in a brush pile has heat, and produces ashes.

• Physical

• Chemical

Tags

NGSS.4-PS3-2

NGSS.5-PS1-4

Is milk going sour a physical or chemical change?

• Physical

• Chemical

Tags

NGSS.5-PS1-4

What is the definition of chemical change?

• any change that results in the formation of new chemical substances. 
• changing of only the appearance of the object
• matter cannot be created or destroyed, only change form
• changes affecting the form of a chemical substance, but not its chemical composition.

Tags

NGSS.5-PS1-4

Is mold growing on cheese a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is Gatorade powder dissolving in water physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.5-PS1-4

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties
• liquid properties
• real properties

Tags

NGSS.5-PS1-4