Chemical vs Physical Changes and Properties

Rotting fruit

• Chemical change

• Physical change

Knit a blanket

• Chemical change

• Physical change

Salt dissolves in water

• Chemical change

• Physical change

A nail gets rusty

• Chemical
• Physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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.MS-PS1-2

NGSS.MS-PS1-5

Adding baking soda and vinegar together and it fizzes and creates carbon dioxide.

• Chemical change

• Physical change

Which of the following is a sign of a Chemical Change?

• No Temperature Change

• No Bubbles

• No Gas Production

• Color Change (FOOD DYE DOES NOT COUNT!)

Which of the following describes a precipitate?

• a liquid forms when a block of metal is heated
• a solid forms when one liquid is poured into another
• a gas forms when a solid is placed in a liquid
• bubbles form when an acid is poured on a rock

Mixing mentos with diet coke to form bubbles

• Chemical Change
• Physical Change
• Neither

A chemical change is different than a physical change because in a chemical change

• Chemicals are used
• Molecules do not physically touch
• A new substance is formed and in a physical change no new substance is formed
• The change can be seen but in a physical change it cannot