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Science | Innovation | Science Questions

Science questions are a fun and interesting way to learn about planet Earth, organisms and the universe. In this section you'll find an incredible collection of science questions covering a wide variety of topics.

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How do touch-sensitive lamps work?

Touch-sensitive lamps is explored in this article from HowStuffWorks. Learn about touch-sensitive lamps.


 Why does Alka Seltzer fizz?

Yesterday you talked about hydrogen peroxide, and the day before you talked about Pop Rocks candy. Since we are talking about things that fizz, what about Alka Seltzer? How does it work and why does it fizz? See more »

What is silica gel and why do I find little packets of it in everything I buy?

 What is silica gel and why do I find little packets of it in everything I buy?

Many of the things I buy contain little packets of crystals. Some of them actually say 'Silica Gel' on them, but many are unlabeled or say something like, 'Do not eat.' I have found these packets in electronics, vitamins and even in some pepperoni I bought last week! What is this stuff? Is it poisonous? See more »

 How does a chicken's egg get its shell?

How do chickens create eggs? Does the chicken's body make the shell and fill it with the white and yolk somehow, or does it make the white and yolk and then somehow wrap the shell around it? See more »

How does dry ice work?

 How does dry ice work?

I saw your question on fog machines and dry ice and would like to know more -- how exactly does dry ice work? See more »

How do scratch-and-sniff stickers work?

 How do scratch-and-sniff stickers work?

How do scratch-and-sniff stickers work? What makes them last for years and years? See more »

 How does silk-screening work?

I'm having T-shirts printed, and the people at the shop keep talking about "silk-screening." How does silk-screening work? See more »

 How does a lava lamp work?

How does a lava lamp work? See more »

What is a nautical mile, and how does it differ from a normal mile and a kilometer?

 What is a nautical mile, and how does it differ from a normal mile and a kilometer?

What is a nautical mile, and how does it differ from a normal mile and a kilometer? See more »