Materials - Year 5

Plastic is used on pan handles. What properties make it a useful material for this job?

• Waterproof and electrical insulator

• Thermal insulator and light weight

• Transparent and fragile

• Absorbent and smooth

Some materials do not allow electricity to pass through them. They are known as electrical...?

What could you do to increase temperature of this persons fingers for the longest period of time?

• Put them in warm water.

• Place you hands in your coat pockets.

• Rub hands together.

• Add a thermal insulator, such as a pair of gloves.

Which material would make the best thermal insulator in order to keep food hot?

• Paper

• Foil

• Bubble wrap

• Rubber

What would be the most efficient way to separate a mixture of sand and rice?

What would be the best way to separate this solution back into a sold and liquid?

• Evaporation

• Filtering

• Sieving

• Magnets

In this suspension of sugar and water, the best way to separate them would be to?

• Magnets

• Filtering

• Evaporation

• Sieving

When substances are heated and create a new substance, which cannot be reversed, what do we call this?

Which two substances can be mixed to create a new substance?

• flour and sugar

• milk and vinegar

• milk and cereal

• pasta and rice

Name a common kitchen ingredient that will dissolve in water.