What is a material?
(A substance that things are made from.)
Name one natural material.
(Examples: Wood, wool, cotton, water, metal ore, etc.)
Name one man-made (synthetic) material.
(Examples: Plastic, glass, concrete, paper, etc.)
True or False: All materials have the same properties.
(False.)
What does flexible mean?
(Able to bend without breaking.)
What does rigid mean?
(Not able to bend or change shape easily.)
What does transparent mean?
(A material that lets light pass through, like glass.)
What does opaque mean?
(A material that does not let light pass through, like wood.)
Give an example of a waterproof material.
(Examples: Plastic, rubber, glass, waxed fabric, etc.)
Why are windows made of glass?
(Because glass is transparent and strong.)
Why do we use metal for frying pans?
(Because it is a good conductor of heat.)
Why is rubber used for car tyres?
(Because it is flexible, durable, and provides good grip.)
Why do we use plastic for raincoats?
(Because plastic is waterproof.)
What material is best for making a bridge?
(Metal or concrete because they are strong and durable.)
Name a material that is both strong and lightweight.
(Examples: Aluminium, plastic, certain types of wood, etc.)
Why is paper not a good material for building houses?
(Because it is weak, flammable, and not waterproof.)
