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Your search for "lichen" returned 31 results
Environmental Activities
lifestyle.howstuffworks.com/crafts/animal-crafts/environmental-activities.htm
Dig in dirt or through books to educate yourself on the environment. Learn more about environmental activities and kids crafts.
The Largest Desert in the World Isn't the Sahara
science.howstuffworks.com/environmental/earth/geology/largest-desert-in-world.htm
If you think the largest desert in the world is hot and sandy, think again. These 10 deserts spanning the globe are massive, but they're not all sunbaked.
How Does a Forest Fire Benefit Living Things?
science.howstuffworks.com/environmental/green-science/how-forest-fire-benefit-living-things-.htm
Forest-fire prevention has been a touchstone of American consciousness since the creation of Smokey the Bear in the 1940s. But now, environmental experts believe that some amount of fire is good for the forest too.
Can You Name the Landform From a Definition?
play.howstuffworks.com/quiz/can-you-name-the-landform-from-a-definition
From mountains to battures, hoodoos to plains, our planet is covered in landforms of all types. How well do you know them? Start taking this quiz to find out!
How Tessellations Work
science.howstuffworks.com/math-concepts/tessellations.htm
Mathematics achieves the sublime. Sometimes, as with tessellations, it rises to art. In their simplest form, tessellations consist of a single shape that repeats over a two-dimensional plane without any gaps. Why was M.C. Escher so fixated on them?
Rock Garden Ideas
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A rock garden can blend beautifully with your garden ideas. Find dazzling ideas and rock garden photos in this article.
We'll Be Impressed If You Can Name Even 11 of These Trees From Their Leaves
If not for trees the world would be a much less scenic place, don't you think? They may not get the attention that flowers do but they still deserve recognition. Why not climb the branches of this quiz and see how many you recognize?
How Aliens Work
science.howstuffworks.com/space/aliens-ufos/alien-physiology.htm
Alien life forms would probably differ from those on Earth but still adhere to certain principles. Learn about astrobiology and the search for alien life forms.
10 Green Lawns Without a Blade of Grass
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Grass isn't necessary for your lawn to be green. Learn about ten green lawns without a blade of grass.
Extremophiles: How Do These Organisms Push the Limits of Life?
science.howstuffworks.com/life/cellular-microscopic/extremophile.htm
Extremophiles are organisms that live in "extreme" environments. Learn why extremophiles are remarkable, not only because of their habitats.