Physical Properties of Food

Oh, itMATTERs...

Physical Properties of Food

Matter:
Anything with mass & volume

● Every element/compound is unique in

some way from all others.

If you know enough about a substance,
you can figure out what it is and
types of things about it.

Multiple Select

All matter has 2 types of properties:  

• chemical

• physical

• gas

• liquid

• solid

Matter

All matter has 2 types
of properties:

● Physical
● Chemical

Multiple Choice

A physical property is a characteristic or a substance that can be observed

• without changing the substance into another substance.

• with changing the substance into another substance.

• with changing phases

Physical Properties of Matter

A physical property is a
characteristic of a substance
that can be observed
without changing the
substance into another
substance.

Multiple Select

Physical properties of matter are used to describe objects (matter) and are used to ______ and _______ different types of matter.

• Identify

• compare

• Combine

• seperate

Physical Properties of Matter

Used to describe objects (matter) and are

used to identify and compare different types
of matter

Multiple Choice

What is viscosity?

• The internal friction of a liquid or its ability to resist flow.

• A state of matter.

• Heat conductivity.

Physical Properties

● Color
● Hardness
● Odor
● Taste
● State of matter
● Texture
● Luster (shine)
● Flexibility

● Heat conductivity
● Solubility:

● ability to dissolve in water

● Shape
● Viscosity

Often characteristics found in
SENSORY EVALUATIONS

Multiple Choice

Jeopardy style question

DEPENDENT on the amount of a substance that you have.

• What are extensive properties?

• What are intensive properties?

Multiple Choice

Jeopardy style question

NOT DEPENDENT on how much you have.

• What are extensive properties?

• What are intensive properties?

Physical Propertiescan be extensive or intensive:

Extensive properties:
DEPENDENT on the amount of a substance
that you have.

Intensive properties:
NOT DEPENDENT on how much you have.

Multiple Choice

Jeopardy style question

volume

weight

mass

size

• What are examples of extensive properties?

• What are examples of intensive properties?

Examples of extensive

physical properties include:

Volume
Mass
Weight

Size

Multiple Choice

Jeopardy style question

density

melting point

boiling point

• What are examples of extensive properties?

• What are examples of intensive properties?

Examples of intensive physical
properties include:

Density
Melting point
Boiling point

Physical Properties

How many physical properties could you
use to describe ice cream?
It’s cone?

Food for thought:

Physical Changes

Refer to changes in size, state or
shape or changes in other physical
properties.

One or more physical attributes
transform, but the chemical identity
is unchanged.

● The physical state changes but

does not change what the substance is

Multiple Choice

Jeopardy style question

● Change in shape ● Change in form ● Change in size ● Change in phase

• What are examples of physical changes?

• What are examples of chemical changes?

Physical Changes

● Change in shape
● Change in form
● Change in size
● Change in phase

Melting (solid to liquid)

Boiling (liquid to gas)

Evaporation (liquid to gas)

Condensation (gas to liquid)

Freezing (liquid to solid)

Sublimation (solid to gas)

Deposition (gas to solid)

Physical Change Examples

Remember:
Phase change is a physical change in the visible structure
without changing the molecular structure

Causes of Physical Changes

● Grinding
● Cutting
● Crushing
● Bending
● Breaking
● Heating/cooling

● (change in phase)

● Squishing

Physical changes are usually reversible

Physical Changes

What could you do to these
items to cause a physical
change to occur?

Multiple Choice

Jeopardy style question

substances that are put together, but not chemically combined

• What are mixtures?

• What are state changes?

• What is matter?

Physical Changes in Mixtures

Mixtures are substances that are put
together, but not chemically
combined

● Homogeneous mixtures

● Heterogeneous mixtures

Multiple Choice

Jeopardy style question

have a uniform distribution of particles

• What are homogenous mixtures?

• What are heterogeneous mixtures?

Homogeneous
mixtures have a uniform
distribution of particles

Physical Changes & Mixtures

Homogeneous mixtures often have a
solution in which a solute is dissolved by a
solvent

Solution = SOLUTE + SOLVENT

Solute:Gets dissolved

• May lower freezing point
• May increase boiling point

Solvent:Does the dissolving

Physical Changes & Mixtures

Which is the solute and

which is the solvent in this solution?

Multiple Choice

Jeopardy style question

have a non-uniform distribution of particles

• What are homogenous mixtures?

• What are heterogeneous mixtures?

Heterogeneous
mixtures have non-uniform
distribution of particles

● Not evenly mixed

Multiple Choice

What mixtures will be insoluble?

• Heterogeneous mixtures

• Homogeneous mixtures

Heterogeneous mixtures will be INSOLUBLE:

● Will not dissolve

Multiple Choice

Homogenous or Heterogenous?

• Homogenous

• Heterogenous

Multiple Choice

Homogenous or Heterogenous?

• Homogenous

• Heterogenous

Multiple Choice

Homogenous or Heterogenous?

• Homogenous

• Heterogenous