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How Marijuana Works
science.howstuffworks.com/marijuana.htm
Marijuana isn't just a recreational drug for hippies and philosophy majors -- its psychoactive history ranges from Egyptian mummies to modern U.S. politics. What's the big deal about this leafy, green plant?
How do polymer crystals work and why do they absorb so much water?
science.howstuffworks.com/dictionary/geology-terms/question581.htm
Polymer crystals are amazing in that they can absorb many times their size. In fact, one pound of these crystal flakes can hold up to 50 gallons of water. Find out what these polymer crystals are and why they are able to absorb so much water.
How Perfume Works
science.howstuffworks.com/perfume.htm
Perfume is any substance that you wear and that smells. There are no requirements for it to smell good. Learn more about perfume at HowStuffWorks.
Chocolate Quirks: Unusual Chocolate Products
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Chocolate is a pleasure to eat, but there are some quirky chocolate products out there. See pictures of unusual chocolate products at HowStuffWorks.
Aztec Achievements: Crafting a Legacy of Innovation
science.howstuffworks.com/innovation/inventions/5-ancient-aztec-inventions.htm
The Aztecs, often associated with warfare and elaborate rituals, gave birth to a sophisticated system of government, remarkable artistic endeavors and a resilient language. Let's dive deeper into their remarkable contributions.
Tropical Rainforest Guide: How Rainforests Work
science.howstuffworks.com/environmental/conservation/issues/rainforest.htm
Tropical rainforests are the most diverse ecosystems on Earth, and also the oldest. Today, tropical rainforests cover only 6 percent of the Earth's ground surface, but they are home to over half of the planet's plant and animal species.
Biotic Factors vs. Abiotic Factors: Examples and Dependencies
science.howstuffworks.com/life/biology-fields/biotic-factors.htm
The natural world is a finely-tuned balance of biotic (living) and abiotic (nonliving) components that shape our environments. Various biotic factors directly affect processes like population growth, plant growth and nutrient cycling.
What makes graveyards scary?
science.howstuffworks.com/science-vs-myth/afterlife/scary-graveyard.htm
Scary graveyards like the one in the cult hit Phantasm are everywhere. Are scary graveyards so creepy to you that you suffer from coimetrophobia?
Why Does the Fibonacci Sequence Appear So Often in Nature?
science.howstuffworks.com/math-concepts/fibonacci-nature.htm
Fibonacci numbers create a mathematical pattern found throughout nature. Learn where to find Fibonacci numbers, including your own mirror.
How Kudzu Works
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Kudzu is explained in this article. Learn about kudzu.