Transcript Activity 14 Title: Physical and Chemical Properties of Materials Read B-14 Challenge: How do the properties of materials determine their uses? Hypothesis/Initial Thoughts:

Activity 14
Title: Physical and Chemical
Properties of Materials
Read B-14
Challenge: How do the properties
of materials determine their
uses?
Hypothesis/Initial Thoughts:
Background:
Physical
Properties
Definition
Examples of
Properties
Change
Definition
Examples of
Change
Chemical
Can be determined without
seeking a chemical reaction. It
is a quality or trait that
describes a material or object
Can only be determined by
adding another chemical to
see if a reaction occurs
•
•
•
•
•
• Reaction with hydrochloric
acid (HCL)
Color
Hardness
Texture
Light transmission
luster
A physical change occurs when a
substance changes its state (solid,
liquid, gas) or when it is broken
into smaller pieces or combined
into larger ones.
• Cut/smash/fold
• Evaporate/boil
A change in how atoms or molecules are
bonded to each other, resulting in a new
arrangement of atoms or molecules. A
chemical change always results in
changed physical properties
•
•
•
•
Iron rusting
An acid dissolving a metal
Wood burning
An egg becoming hard boiled