What is the use of a bottle steriliser?

• Sterilising milk bottles

• Washing milk bottles

• Drying milk bottles

• Cleaning milk bottles

The heat of the ( ) keeps the Earth warm.

• Sun

• Moon

• Fire

• Electricity

Heat can be produced by burning, using electricity and ( ).

• rubbing

• clapping

• hitting

• moving

We can use ( ) to measure the temperature of liquids in experiments.

• a laboratory thermometer

• a digital ear thermometer

• an air thermometer

• a fish tank thermometer

We can use ( ) to measure body temperature.

• a digital ear thermometer

• a fish tank thermometer

• a laboratory thermometer

• an air thermometer

Our normal body temperature is about ( ) °c.

• 37

• 34

• 39

• 32

Heat is transferred from the ( ) part of an object to the colder part.

• hotter

• colder

• longer

• shorter

Different materials transfer heat at ( ) rates.

• different

• the same

The cooking pan is made of metal, which is a ( ) conductor of heat.

• good

• poor

The handle of a cooking pan is made of plastic, which is a ( ) conductor of heat.

• poor

• good