Lesson Two – Purifying Water

This science teaching pack for Key Stage Two gets the children to explore and model some of the different methods that can be used to purify water that has been contaminated with a range of solid substances.
The class can practise and explain how to use the scientific process of evaporation to try and recover a selection of solid materials from a liquid.
Download this teaching pack including a lesson plan, classroom activities and an interactive presentation to explore and model some of the different methods that can be used to purify water that has been contaminated with a range of solid substances
Activities in this teaching pack include display posters to identify and describe the properties of different solids, liquids and gases and a template to select and record their observations when evaporating a solution formed by combining water and salt.
The interactive presentation gets the children to explore some of the different methods that can be used to purify water contaminated with a range of solid substances
This lesson is part of a science scheme of work to get the children to investigate, test and record how a range of different materials can be changed and altered including the use of dissolving and evaporation. There are teaching activities for shared learning, differentiated worksheets to support independent learning and interactive presentations to introduce concepts and key skills.
-
Written Addition Sums
Practise using standard methods of calculation for columnar addition to solve problems when finding the sums of pairs of different numbers
-
Ocean Crossing
Select and add different pairs of money amounts using a standard written method of calculation to choose some of the special items that are needed for a sea voyage across an ocean
-
Theme Park Rides
Identify and model how to use addition standard written methods to calculate the length and cost of building different theme park rollercoaster rides
-
Addition True and False
Investigate and illustrate how to use standard written methods to check addition calculations of three, four and five digit numbers including decimals