Outstanding Science | Primary Science Resources for the National Curriculum

Primary Science Resources for the National Curriculum

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KS2 - Year 5 Properties and changes of materials

Learning objective

I can explain how to recover a substance from a solution.

Children investigate the best place to put a cup of salt solution so that the water evaporates most quickly. They choose 4 locations and measure the amount of water in each container over the course of 7 days. They transfer their results to a line graph and use this to answer the question.

  • 5c2: know that some materials will dissolve in liquid to form a solution, and describe how to recover a substance from a solution
Solutions cannot be separated by filtering using a sieve.
The solute can be recovered from a solution (for example salt from seawater) by evaporation of the solvent.
Water in different environments can evaporate at different rates.
Year 4 Properties and changes of materials | Outstanding Science

Properties of materials Investigation

Outstanding Science Year 5 | Properties and changes of materials | OS5C001

Learning objective

I can group materials according to their properties.

Children investigate the properties of 10 different materials. They predict and then investigate whether the materials are electrical conductors, transparent, strong thermal conductors or magnetic. They record their results in a table, and then complete a Venn diagram containing 2 intersecting sets, choosing 2 properties by which to group the materials.

  • 5c1: compare and group together everyday materials on the basis of their properties, including their hardness, solubility, transparency, conductivity (electrical and thermal), and response to magnets
Materials can have different combinations of properties, including electrical and thermal conductivity, magnetism and transparency.
Year 5 Properties and changes of materials | Outstanding Science

Soluble materials Investigation

Outstanding Science Year 5 | Properties and changes of materials | OS5C002

Learning objective

I can investigate which materials are soluble in water.

Children investigate whether sand, sugar, salt, flour or iron filings will dissolve in water. They record their results in a table and then display them in a single-set Venn diagram. They consider how they could separate the mixtures and solutions.

  • 5c1: compare and group together everyday materials on the basis of their properties, including their hardness, solubility, transparency, conductivity (electrical and thermal), and response to magnets
When a solute dissolves in a solvent to create a solution, its particles spread out so that they can no longer be seen or retrieved by filtering.
Some materials are soluble in water, but others are not.
Year 5 Properties and changes of materials | Outstanding Science

Investigating hardness Investigation

Outstanding Science Year 5 | Properties and changes of materials | OS5C003

Learning objective

I can investigate the hardness of materials and place them in order of hardness.

Children investigate whether 5 different materials can be scratched by 4 different objects of increasing hardness. They use their results to place the materials in order of hardness.

  • 5c1: compare and group together everyday materials on the basis of their properties, including their hardness, solubility, transparency, conductivity (electrical and thermal), and response to magnets
Hardness is a measure of how resistant a material is to deformation.
Some materials are harder than others.
Year 5 Properties and changes of materials | Outstanding Science

Separating mixtures Investigation

Outstanding Science Year 5 | Properties and changes of materials | OS5C005

Learning objective

I can suggest ways in which different mixtures can be separated.

Children consider 6 different mixtures / solutions and discuss the best way to separate each. They attempt to separate them using their chosen method. They discuss whether their method worked and why.

  • 5c3: use knowledge of solids, liquids and gases to decide how mixtures might be separated, including through filtering, sieving and evaporating
Methods for separating mixtures include picking out by hand, decanting, sieving, filtering, using a magnet, and evaporation.
Not all methods of separation will work for all mixtures.
Year 5 Properties and changes of materials | Outstanding Science

Uses of materials Worksheet

Outstanding Science Year 5 | Properties and changes of materials | OS5C006

Learning objective

I can explain why materials are used for different purposes.

Children identify the materials that 4 different objects are made from and explain why they have been chosen with reference to their physical properties. Next, they describe the physical properties and uses of 6 different materials - metals, plastics, wood, fabrics, glass and leather. They cut and paste or write their own descriptions.

  • 5c4: give reasons, based on evidence from comparative and fair tests, for the particular uses of everyday materials, including metals, wood and plastic
The properties of different materials make them suitable for some purposes, but not for others.
Year 5 Properties and changes of materials | Outstanding Science

New materials Worksheet

Outstanding Science Year 5 | Properties and changes of materials | OS5C007

Learning objective

I can explain the advantages of new materials and how they were created.

Children learn about the origins of Post-It Notes, wrinkle-free cotton, polar fleece and Gore-Tex. They complete an information text, showing when and by whom they were invented, their advantages and disadvantages, and common applications.

  • 5c4: give reasons, based on evidence from comparative and fair tests, for the particular uses of everyday materials, including metals, wood and plastic
Scientists can create new and synthetic materials with beneficial properties.
Year 5 Properties and changes of materials | Outstanding Science

Reversible and irreversible changes Worksheet

Outstanding Science Year 5 | Properties and changes of materials | OS5C008

Learning objective

I can identify if a change is easily reversible and how to reverse it.

Children examine 11 different physical changes of materials. They identify whether they can be easily reversed and explain how or why.

  • 5c5: demonstrate that dissolving, mixing and changes of state are reversible changes
  • 5c6: explain that some changes result in the formation of new materials, and that this kind of change is not usually reversible, including changes associated with burning and the action of acid on bicarbonate of soda.
Some physical changes are readily reversible (such as freezing and melting), while some are not (such as burning, because new substances have been produced).
Year 5 Properties and changes of materials | Outstanding Science