SCIENCE 8

Three students are having a discussion about switches.

Only one student is correct. Choose the name of the student who is correct.

• kim

• ren

• aki

Maryam wants to make a circuit. She uses a lamp.

Which other parts should she use so that the lamp light up?

Choose the two correct answers

• torch

• open switch

• cell

• wires

Which diagram shows a closed switch?

• A

• B

Look at this circuit.

There is a break in the circuit. What will happen to the circuit?

Amara makes a circuit.

The lamp does not light up. Explain why.

An electrical . . . . . . . does not allow electric current to flow easily.

Look at the stuffs below.

Choose the four that are electrical conductors.​

​ (a)   ​ (b)   ​ (c)   ​ (d)  

• plastic comb
• wooden chair
• iron nail
• steel door handle
• aluminium pan
• rubber band
• copper coin
• cotton socks

Look at the diagram.

Choose the box next to the correct statement.

• The lamp will light up

• The lamp will not light up

Wires in electrical appliances are covered in plastic. Explain why.

Class 4 students make some circuits.

Which diagram shows the brightest circuit made by the students?

• A

• B

• C