Electrical and Thermal Conductors

Electrical & thermal conductivity, porosity & coarseness

Y3 Science Worksheet Week 30

​Electrical conductor

​Electrical insulator

​Porosity

​More pores

Less pores

​Coarseness

QUIZ TIME!​

Multiple Choice

Which of the materials conduct electricity?

• Ceramic

• Glass

• Tap water

• Polystyrene

Multiple Choice

Which picture shows the material with the highest porosity?

Multiple Choice

TRUE OR FALSE

More porous means having more pores.

• TRUE

• FALSE

Multiple Choice

Which picture shows the finest material?

Multiple Choice

This material can be described as all of the following except for .......

• Transparent

• Electrical insulator

• Porous

• Hard

Fill in the Blanks

Mercury is usually used in thermometers. It is an example of a

Fill in the Blanks

Beans can be crushed/grinded into powder. You can describe uncrushed beans as

Multiple Choice

TRUE OR FALSE

Thermal conductors allow heat to be transferred through them.

• TRUE

• FALSE

Multiple Select

Which two materials can be used to light the bulb up?

Multiple Choice

We use rubber gloves to hold a hot frying pan because it .......................

• does not conduct heat

• does not slip

• conducts electricity

• absorbs water

Thank you for answering!