Mixture

Mixtures and Solution

grade 6

What is a Mixture?

In chemistry, when two or more substances mix with each other without participating in a chemical change, the resulting substance is called a Mixture.

Examples of Mixtures

• Crude oil: A mixture of organic compounds (mainly hydrocarbons)

• Seawater: A mixture of various salt and water.

• Air: a mixture of various gases like oxygen, carbon dioxide, nitrogen, argon, neon, etc.

• Ink: A mixture of colored dyes.

• Gunpowder: A mixture of sulfur, potassium nitrate and carbon.

The properties of mixtures are listed below.

• The components of a mixture each keep their original properties.

• The separation of components can be easily done.

• The proportion of the components is variable

Type of mixtures

Type of Mixtures

What is a Heterogeneous Mixture?

A mixture of sand mixed with salt is an example of a heterogeneous mixture. Heterogeneous mixtures possess different properties and compositions in various parts i.e. the properties are not uniform throughout the mixture.

Examples of Heterogeneous mixtures – air, oil, and water, etc.

Type of Mixtures

What is a Homogeneous Mixture?

Sugar mixed with water is the most common example of a homogeneous mixture. Homogeneous mixtures can be defined as the mixtures which possess the same properties and combination throughout their mass.

Examples of Homogeneous mixtures – alloys, salt, and water, alcohol in water, etc.

Multiple Choice

A glass of Kool Aid/ Tang juice can be classified as

• element
• homogeneous
• heterogeneous
• suspension

Multiple Choice

Halo-halo can be classified as what type of Mixtures?

• element
• solution
• homogeneous
• heterogeneous

Multiple Choice

What are the two types of mixtures? 

• element and sub-atomic
• atoms and compounds
• homogeneous and heterogeneous
• element

Multiple Choice

Which of these is not a mixture? 

• oil and water
• sand and soda
• diet soda
• all are mixtures