Physical and Chemical Properties

Observable Physical Properties - 5 senses

Hear

Touch

Sight

Taste

Smell

Testable Physical Properties

Density is a physical property that can checked by how much an object sinks or floats in water

Hardness can be tested by scratching or denting an object

Solubility can be tested by how easily a substance dissolves in a liquid like water

Chemical properties and what is it?

Chemical properties are revealed during or after a chemical reaction when bonds break or form to create a new substance

Chemical properties of a substance is determined by it’s flammability, acidity, toxicity, reactivity, oxidation, and combustion.

What happens during a physical changes

Physical changes happen when an objects appearance is altered but NO new substance is created. Changes in shape, sizes or state like ripping, cutting, dissolving, melting, boiling, breaking, etc

What happens during a chemical changes

A chemical change happens when matter or a substance creates a new substance meaning the substance has different properties from the original substance.

Changes such as rotting, rusting, burning, exploding, combustion, and corrosion are all considered as chemical changes

Chemical change clues

Colour change

Change of temperature

Creation of a gas (formation of bubbles)

Precipitate forms

Odor is given off

Changes in pH