Menu

Home : Key Stage Two : Science : Year Five : Changing Materials

Lesson Two – Purifying Water

This science teaching pack for Key Stage Two gets the children to explore some of the different methods that can be used to purify water contaminated with a range of solid substances. The children can practise using the process of evaporation to try and recover different solids from a liquid.

Download this teaching pack including a lesson plan, classroom activities and an interactive presentation to teach the children to explore some of the different methods that can be used to purify water contaminated with a range of solid substances

Learning Objectives

Use knowledge of solids, liquids and gases to decide how mixtures might be separated, including through filtering, sieving and evaporating. Know that some materials will dissolve in liquid to form a solution.

Learning Outcomes

I know how to separate a mixture of solids and liquids by using evaporation. I know that when some solids are dissolved in a liquid that this will form a solution.

Purifying Water

Teaching sequence to help the children explore some of the different methods that can be used to purify water contaminated with a range of solid substances

Solids, Liquids and Gases

Display posters for whole class discussion to help the children identify and describe the properties of different solids, liquids and gases

Solution Evaporation

Template to help the children select and record their observations when evaporating a solution formed by combining water and salt

Purifying Water

Interactive activity to help the children explore some of the different methods that can be used to purify water contaminated with a range of solid substances

Download this teaching pack including a lesson plan, classroom activities and an interactive presentation to teach the children to explore some of the different methods that can be used to purify water contaminated with a range of solid substances

  • Circus Animals
    Write a discussion text to outline some of the arguments for and against an animal welfare issue
  • Chocolate Debate
    Hold a class debate to identify and explain the benefits and disadvantages of eating chocolate
  • Story Swaps
    Practise writing and editing an alternative version of a traditional story by swapping characters, settings and plot events
  • Story Swap Writing
    Draft and edit an alternative version of a traditional tale to match the original text genre and style