Network
DETAILED FACTS
- Our world is made up of many different materials.
- Metals come from rocks.
- Wood comes from trees.
- Plastics and glass are made in factories.
- Ceramics are made of mud and clay.
- Most fabrics are made of parts of plants or animals.
- Tissues are made of a special absorbent paper.
Characteristics
- Some materials, such as metal, feel cold when you touch them because they draw the heat from your hand. They are said to be good thermal conductors.
- Other materials, such as wood, feel warm to the touch.
- They do not draw heat from your hand and are said to be good thermal insulators.
Functions: We use all these materials to build our homes and to make the things we use every day.
2. Sponge
MAIN IDEA
Class
- There are diff erent types of sponges.
- Some sponges are natural and come from animals that live in warm seas.
- Most sponges found in the house are made of rubber.
DETAILED FACTS
- 1, Some sponges are natural and come from animals that live in warm seas.
- Most sponges found in the house are made of rubber.
