Natural products

What is beeswax? What are candles made of?
What are egg shells made of?
What is cellulose?

Pesticides and poisons

Where can I find information about a substance's toxicity?

Photography and light

How do light sticks work?
How does photographer's hypo work?
What common substances glow when placed under a black light?

Soda pop chemistry

Antinausea syrup and soda pop have many of the same ingredients- what's the difference?
How is Coca Cola(TM) made?
Why do Mentos mints foam when you drop them into soda pop?
Can I simulate soda's effect on the stomach by pouring soda on bacon?
What are soda cans made of?
Why is phosphoric acid in soda pop?

Water treatment

Is adding fluorine to water supplies ethical? Fuels and explosives Why is nitroglycerin explosive?