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How Algae Biodiesel Works
science.howstuffworks.com/environmental/green-science/algae-biodiesel.htm
Many people are interested in algae biodiesel as a green fuel. Learn all about algae biodiesel and how researchers make biodiesel from algae.
How to Choose Aquarium Equipment
animals.howstuffworks.com/pets/choosing-aquarium-equipment.htm
The best way to learn how to keep a freshwater aquarium is to learn how to choose aquarium equipment. Find an introduction to aquarium equipment here.
If You Can Identify These Objects, You're Probably a Baby Boomer
Baby boomers were right there when go-go boots first came on the scene, and they know church keys weren't for opening locks! If you're up to speed with the baby boomer era, do you think you can identify each of our quiz items from just one image? Take a walk down memory lane, and find out!
How Comets Work
science.howstuffworks.com/dictionary/astronomy-terms/comet.htm
Comets are remarkable pieces of our universe's past, and they tell us a great deal about how the universe was formed. Learn about the long but rewarding process of discovering and analyzing comets.
Exploring Mars: Insights Into the Red Planet
science.howstuffworks.com/mars.htm
Since the 1960s, we've been captivated by the planet Mars. How different is our neighbor, and what have we learned about the most explored planet?
Diamond Pictures
science.howstuffworks.com/environmental/earth/geology/diamond-pictures.htm
Diamond pictures shows you some of the different types of diamonds. Check out our collection of diamond pictures
Can You Pass This Periodic Table Trivia Quiz?
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Let's take a trip back to high school chemistry class! Do you remember all those fun things you were taught about the periodic table? Jog your memory with this quiz, and we'll tell you how much knowledge your big brain managed to retain.
How Old Is Earth and How Did Scientists Figure It Out?
science.howstuffworks.com/how-old-is-earth.htm
In 1953, CalTech geochemist Clair Patterson came up with an estimate for Earth's age that still holds today.
How Do Snails Get Their Shells?
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Snails can't survive without the protective shells they call home. Get the details on how they grow them at HowStuffWorks.
How Hair Dye Turns Your Hair That Great Shade of Pink or Purple
Whether you want pink or silver or jet black hair, the BrainStuff team explains how hair dye works to give you your color of choice in this video.