Physical and ChemicalProperties

Objective and Agenda

Objective: Students will be able to differentiate between chemical and physical properties of matter.

Agenda: Do Now Property Notes/PowerPoint Quick Lab Demo Classification and Property HW Exit Ticket

How do we describe substances?

By using their physical and chemical properties

We describe substances by talking about the specific physical or chemical properties that they have.

What is a physical property? A property that can be described using the

five senses. See, smell, taste, touch, hear

Observing the physical properties does not change or damage the substance to learn about it. We use our sense to observe the properties, we DO NOT change the substance.

  Ex: Mass, density, color, size, texture etc.

What is a chemical property?

Describes a substances ability to react with other substances

We must change the identity of a substance to observe the chemical properties.

These changes are almost always irreversible

Ex: Combustion, Acidity, Rusting