Y4 - Classifying Materials

Metals are materials that come from

• 
• 
• 
• 

The following materials float on water except

• 
• 
• 
• 

Which of the following statements is false about fabric?

• It is soft.

• It is flexible.

• It is not waterproof.

• It conducts electricity.

Hardness is how easily a material____________________________

• can be scratched and dented.

• can be bent without breaking.

• can be pulled apart or pressed together without breaking.

• allow electricity to flow through it.

Why is rubber a suitable material for making objects such as balloons, boots and tires?

• Rubber is strong and conducts heat easily.

• Rubber is a conductor of electricity.

• Rubber is flexible and waterproof.

• Rubber absorbs water.

Below are examples of metal except____________

• 
• 
• 
• 

Answer explanation

Diamond is not a metal. It is the hardest gem stone on earth. Diamonds are used to make drills and blades.

Ceramic is used to make pots, cups and saucer. Ceramic is made from_________.

• 
• 
• 
• 

Which of the following materials is man-made?

• 
• 
• 
• 

Answer explanation

Polyester is any fabric that is made from plastic (petroleum oil). Polyester are often made for sports and outdoor clothing, bags and shoes because it is light-weight and waterproof.

Three spoons made of steel, plastic and wood are used to stir a hot soup.

Which of the following spoons will get hot quickly?

• Steel spoon

• Plastic spoon

• Wooden spoon

Answer explanation

Steel is a type of metal made from mixing iron, nickel and chromium. It allows heat to pass through it easily and quickly.

The hammer shown is made of two materials. The two materials are___________________

• Metal and glass

• Metal and rubber

• Wood and metal

• Wood and plastic