I WONDER - How Is Glass Made?

The video explains the process of making glass from sand found on the beach. It involves mixing sand with lime and soda ash, then heating it to extremely high temperatures. Once cooled, the liquid sand forms glass. In its melted state, sand is referred to as silica.

What is the initial material used in the process of making glass?

• Wood

• Metal

• Sand

• Clay

Which two substances are mixed with sand to create glass?

• Clay and metal

• Lime and soda ash

• Salt and pepper

• Water and oil

What happens to the sand mixture after it is heated to high temperatures?

• It turns into metal

• It evaporates

• It becomes liquid

• It forms glass

What is the role of lime in the glass-making process?

• To cool the mixture

• To add color

• To stabilize the mixture

• To make it transparent

At what stage does sand become known as silica?

• When it is cooled

• When it is heated

• When it is melted

• When it is mixed