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Properties of Materials
Properties of Materials
8.2
Properties of Materials
Materials have various properties, such as:
Ability to absorb water
Ability to float on the surface of water
The elasticity of the material
Electrical conductors and insulators
Heat conductors and insulators
Ability to allow light to pass through
Ability to absorb water
Water-absorbent materials become wet when exposed to water. Water will be absorbed by the water-absorbing material when water is dropped on it.
Materials that do not absorb water are called waterproof materials. Water will remain on the waterproof material when water is dripped on it.
Absorb water
Waterproof
Cotton
Paper/tissue
Sponge
Metal
Rubber
Plastic
Rock
Leather goods
Ability to float on the surface of water
There are materials that can float on the surface of the water and sink in water.
Floating on the water
Sink in water
Pencil (wood)
Ice cream sticks (wood)
Ruler (plastic)
Straw (plastik)
Marble (glass)
Key (metal)
Eraser (rubber)
Rock (soil)
The elasticity of the material
The ability of a material to return to its original state after being pulled, squeezed or stretched
Elastic material
Non-elastic material
Rubber (balloons, rubber bands)
Spring
Wood (ice cream sticks, pencils)
Metal (nails)
Plastic (spoon, straw)
Glass
Electrical conductors and insulators
Electrical conductor is a material that can conduct an electric current.
Electrical insulator is a material that cannot conduct electricity.
Electrical conductor
Electrical insulator
Metal
Wood
Plastic
Glass
Leather
Heat conductors and insulators
Heat conductor is a material that allows heat to flow through it well and quickly.
Heat insulator is a material that does not allow heat to pass through it well.
Heat conductor
Heat insulator
Metal
Plastic
Rubber
Glass
Ability to allow light to pass through
A transparent material is a material that allows light to pass through it
A translucent material is a material that allows some light to pass through it
An opaque material is a material that blocks light through it
Transparent
Translucent
Opaque
Glass
Clear plastic
Foggy glass
Gauze
Tracing paper
Colored plastic
Wood
Metal
Some plastic
Applications of properties of materials
Knowledge of the properties of a material is important in creating an object
Choosing a suitable type of material will ensure proper functioning of the created objects
Steps in creating a model by applying knowledge of the properties of materials:
Identifying the problems
Generating the ideas
Sketching of the idea
Preparing the apparatus and materials
Building the model
Properties of Materials
8.2
Properties of Materials
Materials have various properties, such as:
Ability to absorb water
Ability to float on the surface of water
The elasticity of the material
Electrical conductors and insulators
Heat conductors and insulators
Ability to allow light to pass through
Ability to absorb water
Water-absorbent materials become wet when exposed to water. Water will be absorbed by the water-absorbing material when water is dropped on it.
Materials that do not absorb water are called waterproof materials. Water will remain on the waterproof material when water is dripped on it.
Absorb water
Waterproof
Cotton
Paper/tissue
Sponge
Metal
Rubber
Plastic
Rock
Leather goods
Ability to float on the surface of water
There are materials that can float on the surface of the water and sink in water.
Floating on the water
Sink in water
Pencil (wood)
Ice cream sticks (wood)
Ruler (plastic)
Straw (plastik)
Marble (glass)
Key (metal)
Eraser (rubber)
Rock (soil)
The elasticity of the material
The ability of a material to return to its original state after being pulled, squeezed or stretched
Elastic material
Non-elastic material
Rubber (balloons, rubber bands)
Spring
Wood (ice cream sticks, pencils)
Metal (nails)
Plastic (spoon, straw)
Glass
Electrical conductors and insulators
Electrical conductor is a material that can conduct an electric current.
Electrical insulator is a material that cannot conduct electricity.
Electrical conductor
Electrical insulator
Metal
Wood
Plastic
Glass
Leather
Heat conductors and insulators
Heat conductor is a material that allows heat to flow through it well and quickly.
Heat insulator is a material that does not allow heat to pass through it well.
Heat conductor
Heat insulator
Metal
Plastic
Rubber
Glass
Ability to allow light to pass through
A transparent material is a material that allows light to pass through it
A translucent material is a material that allows some light to pass through it
An opaque material is a material that blocks light through it
Transparent
Translucent
Opaque
Glass
Clear plastic
Foggy glass
Gauze
Tracing paper
Colored plastic
Wood
Metal
Some plastic
Applications of properties of materials
Knowledge of the properties of a material is important in creating an object
Choosing a suitable type of material will ensure proper functioning of the created objects
Steps in creating a model by applying knowledge of the properties of materials:
Identifying the problems
Generating the ideas
Sketching of the idea
Preparing the apparatus and materials
Building the model
Chapter : Material
Topic : Properties of Materials
Year 4
Science
View all notes for Science Year 4
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