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What Is Compost? How to Start Composting at Home
home.howstuffworks.com/composting.htm
Americans generate more than 200 million tons of trash each year. Want to put some of it to work? Try composting. It creates a natural fertilizer and can save valuable space in that landfill.
How to Prevent Soot Buildup in Your Car's Engine
auto.howstuffworks.com/how-to-prevent-soot-buildup-in-your-cars-engine.htm
How are engine friction and gas mileage related? Learn how to prevent soot buildup in your car's engine at HowStuffWorks.
What happens when pregnant women smoke?
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/issues/question551.htm
Pregnancy and smoking should never be mixed because of the harm it can cause to the developing baby. Learn more about pregnancy and smoking.
How many atoms are in a person?
science.howstuffworks.com/atoms-in-person.htm
Atoms: the building blocks of life and the universe. We're all made of these microscopic bits of matter, but how many does it take to make a complete human being? And exactly what kinds of atoms do we have inside us?
How the Ozone Layer Works
science.howstuffworks.com/environmental/green-science/ozone-layer.htm
We hear about the ozone layer all the time. But, what is the ozone layer and what are the ozone layer's components?
How the Environment Has Changed Since the First Earth Day 51 Years Ago
It's been 51 years since the first Earth Day, and while progress has been made in some areas, humanity still has had a major impact on the planet.
5 Surprising Acne Treatments
health.howstuffworks.com/skin-care/problems/treating/5-surprising-acne-treatments.htm
Try these surprising acne treatments to get rid of that pimple. Learn about 5 surprising acne treatments at HowStuffWorks.
Can You Get More Than 11 Right on This Astronomy Quiz?
play.howstuffworks.com/quiz/can-you-get-more-than-11-right-on-this-astronomy-quiz
Does the solar system fill you with wonder? Are you an amateur stargazer fascinated by celestial bodies? Show off your knowledge of the universe with an out-of-this-world astronomy quiz!
The Polar Regions of Earth: Our Planet's Complementary AC Units
science.howstuffworks.com/nature/climate-weather/atmospheric/polar-regions-of-earth.htm
The polar regions of Earth are the areas surrounding the North and South Poles, where extreme cold, sea ice and unique ecosystems shape life at the edges of the planet.
Portland Cement: A Concrete History With Structural Integrity
science.howstuffworks.com/innovation/inventions/portland-cement.htm
Invented in 1824, Portland cement remains prominent in modern construction. Learn about the hydraulic binder's raw materials and applications.