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

Separating solutionsFree! 

Outstanding Science Year 5 - Properties and changes of materials | OS5C004

Children learn that solutions cannot be separated by filtering because the particles have spread out and are not in clumps that can be blocked by a sieve. 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
I can explain how to recover a substance from a solution.
Outstanding Science Year 5 - Properties and changes of materials | Separating solutions

Properties of materials 

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

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
I can group materials according to their properties.
Outstanding Science Year 5 - Properties and changes of materials | Properties of materials

Soluble materials 

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

Children learn that 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. They 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
I can investigate which materials are soluble in water.
Outstanding Science Year 5 - Properties and changes of materials | Soluble materials

Investigating hardness 

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

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
I can investigate the hardness of materials and place them in order of hardness.
Outstanding Science Year 5 - Properties and changes of materials | Investigating hardness

Separating mixtures 

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

Children learn about 6 different methods for separating solutions - picking out by hand, decanting, sieving, filtering, using a magnet, and evaporation. They consider 6 different mixtures / solutions and discuss the best way to separate each. They attempt to separate thyem 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
I can suggest ways in which different mixtures can be separated.
Outstanding Science Year 5 - Properties and changes of materials | Separating mixtures

Uses of materials 

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

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
I can explain why materials are used for different purposes.
Outstanding Science Year 5 - Properties and changes of materials | Uses of materials

New materials 

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

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
I can explain the advantages of new materials and how they were created.
Outstanding Science Year 5 - Properties and changes of materials | New materials

Reversible and irreversible changes 

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

Children learn that some physical changes are readily reversible (such as freezing and melting), while some are not (such as burning, because new substances have been produced). They 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.
I can identify if a change is easily reversible and how to reverse it.
Outstanding Science Year 5 - Properties and changes of materials | Reversible and irreversible changes