Basic source from rocks usually produce ____________.

This object is made up of _________.

Basic source of petroleum also produce synthetic cloth such as __________.

Basic source of animal such as sill cocoon produce ___________.

Example of object can be produce is ____________.

Petroleum produce object such as _____________.

Basic soures used for making the body clothes are obtained from

Paper is good for materials to use for

Conductors such as metal let ______

flow through easily?

A material you can not see through is called ...

How is sound produced?

Why is the vehicle giving out sound while it was being driven?

What is the long term effect of our ears are frequently exposed to extremely loud sounds

Which of the following steps can reduce sound pollution?

The reflection of sound waves off a hard surface can create

Pantulan gelombang bunyi dari permukaan yang keras dapat menghasilkan

Which of the instruments make sounds through the vibration of strings?

Instrumen yang manakah mengeluarkan bunyi melalui getaran tali?

The class next door is making a lot of noise. What can we do to keep the noise out?

Kelas di sebelah membuat bunyi bising. Apa yang boleh kita lakukan untuk mengelakkan kebisingan?

Which of the following function as sound absorber?

Antara berikut, yang manakah berfungsi sebagai penyerap bunyi?

What can the man do to keep out the noise and protect his ears?

Apa yang boleh dilakukan lelaki itu untuk mengelak kebisingan dan melindungi telinganya?