What material is best to use for a window? Why?
Glass because it's transparent
If paper is made from wood pulp, then glass is made from ____, while plastic is made from _____.
Glass is made from SAND, while PLASTIC is made from OIL (fossil fuel)
Give three properties of glass.
transparent/clear, smooth, hard, waterproof...
Give three properties of metal.
waterproof, strong, shiny, hard...
Give three examples each of natural and man-made materials
NATURAL - wood, cotton, leather, rock; MAN-MADE - plastic, glass, concrete, ceramic...
Name 3 things that are absorbent.
paper, fabric, sponge...
Give 3 things that are made from fabric.
clothes, pillows, blanket...
If the opposite of soft is hard, what are the opposites of smooth, waterproof, strong, flexible, and heavy?
smooth - rough; waterproof - absorbent; strong - weak; flexible - rigid; heavy - light
What material is best to use for a raincoat? Why?
Plastic because it's waterproof
What material is best to use for spoon, fork, and knife? Why?
metal (stainless steel) because it's strong, smooth, and not easy to rust
Name one object that is made from the following materials: wood, rubber, plastic, glass, metal, concrete, and fabric
wood - table; rubber - tire; plastic - bottle; glass - window, metal - coin; concrete - bridge; fabric - clothes
Name the object and the material used.
The shuttlecock is made from feathers.
What materials are our clothes usually made from?
are often made from various fibers, such as cotton, wool, and silk, which are used to make fabrics
What do you call the material found in nature? How about made by people?
NATURAL if from nature, while MAN-MADE if made by people
What is a material?
it is something that we use to make things