Transparent, Opaque and Translucent Materials

Classify the following materials into transparent, translucent and opaque materials:
cloth, tracing paper, glass sheet, wooden sheet and tissue paper.

In Fig. (a), the shape of the shadow is _____.

In Fig.(a), the colour of the shadow formed is _____.

Which of the following is an opaque material?

Which of the following is not a translucent material?

The material through which we can see clearly is called _____ material.

We can see through a glass.

In our daily activities, what value can we learn from this property of glass?

We can see through a glass.

Why do we see through a glass?

How is a shadow formed?

What is meant by translucent material?