Chemistry

Pure Substance

Any element that we find on the periodic table.

Mixture

Two or more different substances combined together that are not chemically joined. Each substance keeps its own properties, and they can be separated using physical methods like filtering or evaporating.

Homogenous

A mixture that has a uniform composition throughout.

Heterogenous

A mixture that has visibly different substances or phases, where the individual components retain their distinct properties.

Dissolve(ing)

A solute breaking up into tiny particles

Solute

The substance being dissolved.

Solvent

The substance doing the dissolving.

Soluble

• Same/Uniform

• Substances do dissolve

• Homogenous mixtures

n example is Milo + Milk = Milo Milk (SOLUBLE LIQUID).

Insoluble

• Not uniform/Not the same throughout

• Substances do not dissolve

• Heterogenous mixture

An example is Olive oil + Water = Olive oil on the top, and water at the bottom (INSOLUBLE LIQUID).

Examples of Soluble Items in the Kitchen

1. Salt

2. Sugar

3. Vinegar

4. Honey

5. Lemon Juice

Examples of Insoluble Items in the Kitchen

1. Tumeric

2. Nut skins

3. Vegie skins

4. Butter

5. Cooking oil

Physical Properties

A characteristic of matter that can be observed and measured without changing it’s chemical structure.

• Melting Point

• Burning Point

• Density

• Size

• Magnetism

Density, Size and Magnetism are used to separate insoluble substances.