To have access is the ability to enter or use something.

A microorganism is a very tiny living thing.

To filter is to separate the solid particles in a liquid using filter paper or a fine mesh.

A natural object or material has not been made by humans.

Providing safe drinking water (non-statutory Climate Change & Sustainability)

Science

In this Properties, changes and separating materials unit, pupils learn to decide how mixtures might be separated, including through filtering, sieving and evaporating. In the Materials challenge unit, they will build on this knowledge to apply their understanding of separating materials to a wider range of everyday situations

In the Everyday materials unit, pupils learnt to compare and group together a variety of everyday materials on the basis of their simple physical properties. In this Properties, changes and separating materials, pupils will build on this knowledge to compare an group together everyday materials on the basis of a wider variety of properties

This unit explores the properties of everyday materials, including hardness, solubility, and conductivity. It covers reversible changes like dissolving and mixing, and irreversible changes such as burning. Emphasis is on scientific enquiries, data recording, and presenting findings with evidence.

Properties, changes and separating materials

Physical activity and equipment requiring safe use

Which of the following is one of the world’s largest health and environmental problems? 

Which group of people are most likely to suffer from unsafe drinking water? 

What percentage of the world’s population have access to safe drinking water at home? 

Approximately how many people in the world do not have access to safe drinking water at home?

Microorganisms can become ill in water so they need protecting.

Why must microorganisms be removed from water to make it safe to drink? 

Which of these is a step in the processes used to make water safe for drinking?

Natural materials have been made by humans.

Natural materials have not been made by humans.

Natural materials have come from lots of different nations, or countries.

Which of these describes natural materials?

Which of these is not a natural material?

What do we call a solid that dissolves in a liquid?

What do we call a solid that does not dissolve in a liquid?

What is the name of this piece of equipment?

Filter paper can be used to separate {{}} solids from liquids.

Content guidance

Risk assessment required - equipment

Adult supervision required

Introduction

What will you need for this lesson?

Are you ready to learn?

Equipment

Content guidance

Supervision

Worksheet