Material World

Materials and Their Uses

• We use glass because it is transparent, durable, and resistant to corrosion.

Metals and Their Uses

• We use metal to make things because of its strength, durability, and ability to be shaped into various forms.

Plastics and Their Uses

• The main difference between plastic bags and bicycle helmets made from plastic is their purpose and properties: plastic bags are flexible and used for carrying items, while bicycle helmets are rigid and used for protection.

Textiles and Their Uses

• We use cloth because of its flexibility, comfort, and ability to provide warmth.

Plastics in Safety Equipment

• We use plastic to make bicycle helmets because it is lightweight, strong, and provides excellent protection.

Properties of Materials

• The main difference between glass and metal is their properties: glass is transparent and brittle, while metal is opaque and malleable.

Wood and Its Uses

• We use wood to make chairs and tables because of its durability, aesthetic appeal, and ability to be shaped into various forms.

Comparing Plastics

• The main difference between plastic bags and bicycle helmets made from plastic is their purpose and properties: plastic bags are flexible and used for carrying items, while bicycle helmets are rigid and used for protection.

Metals in Everyday Objects

• We use metal for keys because of its strength, durability, and ability to be shaped into a functional form.