properties of materials ( Part 1 )

Different materials have different _____________.

• characteristics

• properties

• needs

• groups

Look at the picture above.

What property or properties must the material for making the camping tent have?

• Opaque

• Transparent

• Not waterproof

• Waterproof

The diagram above shows what happens when two objects, A and B, are placed in a tank of water.

Which of the following could objects A and B be?

• A: Glass marble, B: Styrofoam plate

• A: Wooden chopstick, B: Wooden toothpick

• A: Plastic spoon, B: Metal coin

• A: Metal spoon, B: Rubber eraser

choose the absorbent

• Fabric /metal

• Paper /tissue paper

• Polythene/plastic

• None of theme

Which property is most important for a raincoat?

• rigid

• hard

• waterproof

• transparent

What happens when the plastic bottle is filled with water?

• It will float

• It will sink

Why does oil float when pour into the water?

• Oil is more dense than the water.

• Oil is less dense than the water.

• Oil has equal density with water.

• Both oil and water has no density.

Why do some things float on the water?

• because it has no weight.

• because it has no mass.

• because it has no volume.

• because it is less dense.

What will happen to an object that is more dense than the water?

• It will sink.

• It will float.

• it will decay.

• It will disappear

Water has spilled on a table. Which object should be used to clean the spill?

• Plastic ruler and balloon

• paper towel and cotton towel

• Drinking glass and plastic spoon

• Glass bottle and rubber gloves