Year 4 Materials Science Review

Which property of a material allows it to be stretched and returned to its original shape?

• Elastic

• pores

• waterproof

• high tensile strength

Answer explanation

Which of the following properties is important for choosing a suitable material for a raincoat?

• warm

• quick dry

• non biodegradable

• repel

Answer explanation

What type of material would be suitable for making a kite?

• elastic

• denim

• high tensile strength

• warm

Answer explanation

Kites undergo a lot of pressure and tension while in the sky. There are air pressures and wind forces working against them.

What is the term for an investigation in which only one variable at a time is changed?

• quick dry test

• fair test

• elasticity test

• waterproof test

Answer explanation

Which property of a material is necessary for keeping water out?

• pores

• elasticity

• repel

• quick dry

Answer explanation

Which of the following material is an example of a non biodegradable material?

• cotton

• glass

• paper

• wood

Answer explanation

Glass is made from natural materials, but is processed to become the material we know as glass.

Glass can be eroded and worn away into smaller particles, but it does not decompose.

What type of material would be suitable for making a rain jacket?

• warm

• quick dry

• wool

• elastic

Answer explanation

which of the following materials has high tensile strength - they do not snap, tear or stretch under tension.

• paper

• steel

• rubber

• glass

Answer explanation

What is the term for a material's ability to resist tearing?

• rippable

• snap

• high tensile strength

• elasticity

Answer explanation

High tensile materials do not snap, tear or stretch under tension.

Low tensile materials snap, tear and stretch easily

Which of the following properties are important in a material being used for a picnic blanket?

• quick dry

• warm

• bio degradable

• low tensile strength

Answer explanation