The document discusses materials and their properties. It explains that all objects are made of either natural materials like wood, wool, and clay that come from nature, or man-made materials like plastic, glass, and steel. The way a material looks and feels is called its property, and different materials have varying properties like hardness, strength, flexibility, and whether they conduct heat that determine their uses.

1. MATERIALS

2. All objects we use are made of
materials.

3. Materials can be:
Natural Man made

4. Natural materials
Materials that come from plants, animals and rocks.
Example:
ivory
leather
clay
straw
wool wood

5. Man made materials
Example:
Bricks
Glass
Steel
Plastic bottle
Paper

6. How a material looks and feels like is
called its property.
Materials have different properties that
make them useful for different jobs.

7. Properties
1) Shiny or dull.
2) Rough or smooth
3) Hard or soft
4) Strong or weak
5) Water proof or absorbent
6) Transparent, translucent or opaque
7) Flexible or rigid
8) Elastic or inelastic
9) Magnetic or non-magnetic
10) Heat conductor or insulator

8. Teddy bear