Familiar Materials
Elementary School
Definition
Everyday substances such as wood, metal, plastic, glass, and fabric, each recognised by its properties. Knowing the properties of familiar materials helps explain why each is chosen for particular objects, such as glass for windows because it is transparent.
Worked examples
Windows are made of glass because glass is transparent, letting light through while keeping wind and rain out.
Glass's transparency property makes it the right material for this purpose.
A metal spoon conducts heat quickly, so it gets hot in soup, while a wooden spoon stays cool.
Metal's high thermal conductivity differs from wood's low conductivity.
Rubber bands stretch and return to shape because rubber is flexible and elastic.
Rubber's elasticity property explains why it is chosen for items that need to stretch.
Common mistakes
- All plastics are the same material with the same properties → Different plastics have different properties (some rigid, some flexible, some heat-resistant) Plastic is a family of materials; each type has distinct properties for different uses.
- Wood is chosen for furniture only because it looks nice → Wood is chosen for its strength, workability, and appearance combined Material choice depends on multiple properties, not just one aesthetic feature.
- Metal objects always feel colder than wooden objects at room temperature → Both are the same temperature; metal conducts heat away from your hand faster The sensation of cold comes from thermal conductivity, not actual temperature difference.
Where you'll use it next
Understanding material properties leads to studying states of matter, thermal and electrical conductivity, and material science in chemistry and physics, plus design and engineering applications.
See also
Material PropertiesPhysical PropertiesSorting MaterialsMaterial UsesStates of MatterTools and Materials
Reviewed by Pat Cheng, M.Ed. — StudyPug Curriculum Lead · Last updated June 6, 2026