2 Chemical and Physical PROPERTIES and CHANGES

Question 1

Physical properties definition:

Answer 1

A characteristic that describes matter when it is not changing into a new chemical substance

Question 2

Chemical properties definition:

Answer 2

A characteristic that describes matters ability to change into a new chemical substance

Question 3

Physical properties (Describing the Property)

• -

Answer 3

PROPERTY - Describing the property

• Colour >
• Texture >
• Odour >
• Lustre >
• Clarity >
• Taste >
• Malleability >
• State >

Question 4

Physical Change:

Answer 4

Describes when matter changes form but no new substance is produced

Question 5

Chemical Change:

Answer 5

Describes when matter changes and a new chemical substance is formed (new chemical formula)

Question 6

Signs of a Physical change:

Answer 6

• Only physical properties can change, chemical properties remain unchanged
• Usually easily reversible
• Obvious changes of state

Question 7

Signs of a Chemical change:

Answer 7

• Colour change
• a NEW gas is produced (smoke, bubbles/fizzing)
• Often not easily reversible
• Energy produced (heat, sound, light and motion)