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.
I have been smoking for 50 years and have always wondered why cigarettes have filter tips. I can remember when none of the cigarettes on the market had filters, and now nearly all of them do. Does the filter do anything?
Crayola crayons have nurtured childhood creativity and remained safely edible for over 100 years. Now learn their story- how they originated in the 19th century, how they've changed, and we'll even tell you how old that familiar label is.
The lead in a pencil is not actually lead. It is a mixture of graphite and clay, but have you ever wondered how they get the lead inside a wooden pencil. Find out how pencils are constructed in this article from HowStuffWorks.
It certainly doesn’t bubble up at the drugstore, and it’s kind of a snooze if you pour it on skin that doesn’t have a cut on it. So, what is it about blood that makes hydrogen peroxide start foaming at the mouth?
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?
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