What are mixtures?

What are mixtures?

• I can explain the difference between a mixture and a pure substance.

• I can list and describe common mixtures I encounter daily.

Success Criteria:

• Understand what mixtures are and how they differ from pure substances.

• Use the particle model to compare mixtures and substances.

Learning Intentions:

Making a Glossary

Turn to a new page in your books. We are going to make our own dictionary of all the important words we are going to learn.

Every time you learn a new word add it to your glossary!

Pick the correct definition:

Mixture:

1. A combination of two or more substances where they join together to form a new substance with different properties.

2. A combination of two or more substances where each substance keeps its original properties, and they can be separated.

3. A single substance made up of one type of particle that cannot be separated into simpler components.

Don't write it in your books just yet - check you got it right on the next slide!

Pick the correct definition:

Mixture:

1. A combination of two or more substances where they join together to form a new substance with different properties.

2. A combination of two or more substances where each substance keeps its original properties, and they can be separated.

3. A single substance made up of one type of particle that cannot be separated into simpler components.

All mixtures can be separated into their components, though it's sometimes very difficult. Sometimes the components are also mixtures themselves, like the vinegar in a macaroni salad.

But if you separate vinegar into its components you'll get two substances that are not mixtures: water and acetic acid. We call unmixed substances like this pure.

Pick the correct definition:

Pure Substance:

1. Made of only one type of particle and cannot be separated into different substances.

2. A combination of different materials that can be separated by physical methods.

3. A mixture of various particles that work together to create something new.

Don't write it in your books just yet - check you got it right on the next slide!

Pick the correct definition:

Pure Substance:

1. Made of only one type of particle and cannot be separated into different substances.

2. A combination of different materials that can be separated by physical methods.

3. A mixture of various particles that work together to create something new.

Categorize

Options (6)

A simple particle model can be used to show the difference between pure substances and mixtures.

Classify each example as a pure substance or a mixture.

Mixture

Pure Substance

Multiple Choice

All mixtures are made up of pure substances.

• True

• False

Categorize

Options (8)

Mud

Purified Water

Paint

Salad

Table Salt

Gold

Cookies

Diamonds

Identify if each item is a mixture or pure substance.

Mixture

Pure Substance

You will need scissors and glue

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Classifying Activity

Instructions:

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1. Cut out the images

2. Glue BOX A onto a new page in your books

3. Organise the images into their correct headings

4. Wait for the correct answers before gluing them in