Physical and Chemical Properties of Matter

What is a physical property of matter?

• Color

• Flammability

• Reactivity with acids

• Ability to rust

Which of the following is a chemical property?

• Density

• Melting point

• Boiling point

• Flammability

What happens during a physical change?

• New substances are formed

• The composition of the substance changes

• The appearance or state of matter changes

• Chemical bonds are broken

Why is it important to distinguish between physical and chemical properties?

• To understand how substances interact and transform

• To measure the density of a substance

• To observe the color of an object

• To determine the boiling point of water

What is an example of a chemical change?

• Ice melting into water

• Iron rusting

• Water boiling

• Color of an object changing

The presence of smoke is an indication of (a)  

• chemical  change
• physical change
• Emotional response
• physical reaction

Organize these options into the right categories

Groups:

(a) PHYSICAL CHANGE

,

(b) CHEMICAL CHANGE

• COMBUSTION OF FUEL

• RUSTING IRON

• BAKING THE CAKE

• CHOPPING VEGETABLES

• FREEZING WATER

• BOILING WATER

• CUTTING THE CAKE

• COOKING AN EGG

• SHREDDING PAPER

• THE CAKE GOES BAD AFTER A WHILE

• EATING THE CAKE

• DECOMPOSITION OF ORGANIC MATTER

• FERMENTING GRAPES

• MELTING ICE

• PUTTING THE CAKE IN THE FRIDGE

• MIXING THE INGREDIENTS