Year 4 - Materials

Materials

Materials

​What are materials?

Materials are things that are used to make objects.

Types of Materials

1. ​Metals - comes from under the ground.

2. Wood - comes from trees.

3. Glass - made from sand.

4. Rubber - made using latex from rubber trees.

5. Ceramic - made from clay.

6. Fabric - made from plants and animals, examples, cotton plant, sheep fur, silkworm.

7. Plastics - made using oil from deep underground.

​Metals can be found under the ground. Examples of metals are iron, copper, nickel, gold, silver.

Metals

​Wood comes from trees. Papers, boxes and tissues are made from wood.

​​Wood

​Glass are made from sand. Glasses, mirrors and windows are made from glass.

​​Glass

​Rubber are made of latex from rubber tree. Tires, eraser and rubber bands are made from rubber.

​​Rubber

​Ceramics are made from soil which is called clay. Vase, bowl and mugs are made from ceramic.

Ceramics

Fabrics are made from plants and animals. Silk fabric is made from silkworm. Cotton fabric is made from cotton plant.

​​Fabrics

Plastics are made using oil from deep underground. Plastic cup, plastic bags and plastic spoon are made from plastics.

Plastics

Properties of Materials

1. ​Strength/Strong - cannot break

2. Hardness/Hard - cannot be broken or dented

3. Flexibility - easy to bend

4. Floating - stay on top of water

5. Sinking - fall to the bottom of water

6. Solubility - can be dissolved in water called soluble

   cannot be dissolved in water called insoluble

• strong

• hard

Metals

• strong

• hard

​​Wood

• hard

• easy to break

​​Glass

• flexible (easy to bend)

• strong

​​Rubber

• ​hard

• easy to break

Ceramics

• flexible

• strong

​​Fabrics

• flexible

• strong

Plastics

Types of materials:
A: Plastic
B: Glass
C: Metal

​Object: A Pot

A

B

C

Properties of materials:
A: hard, strong
B: hard, transparent
C: hard, strong

Multiple Choice

What are materials?

• things that are used to make objects

• living things that are used to make objects

• things that are strong

Multiple Choice

What are the type of materials used to make this object?

• metal and plastic

• metal

• metal and rubber

Multiple Choice

What are the properties of material in this object?

• flexible and strong

• hard and soluble

• hard and strong