Chlorine is used to make which of these objects?

• A book (it is used to bleach the papermaking pulp)
• A wooden chair
• A pillow

Copper is extracted from:

• Plants
• Oil
• Mines

What is the purpose of filtration?

• To mix different products
• To separate the components of a mixture
• To heat a product

Which of these products is derived from petrochemistry?

• Ammonium nitrate
• Vinyl chloride
• Aluminum

Which of these pictograms indicates a flammable substance?