communities
Get flash to fully experience Pearltrees
Warning: this comic occasionally contains strong language (which may be unsuitable for children), unusual humor (which may be unsuitable for adults), and advanced mathematics (which may be unsuitable for liberal-arts majors).
xkcd - A Webcomic - Outreach
How to Make a Lava Lamp with Household Ingredients - wikiHow
Have you ever caught yourself being hypnotized by a lava lamp ? You hold it in your hand, move it slightly while inside the liquid quivers and separates into different shapes, and colors.Emerald tree boa
Emerald tree boas are typically a shade of emerald green in color with a white irregular zigzag stripe down the back and a yellow underside. The bright coloration and markings are very distinctive among South American snakes. The emerald tree boa is a nocturnal carnivore.
Why Is Biodiversity Important? Who Cares? — Printer friendly ver
It was noted earlier that ecosystems provide many services to us, for free. Although some dislike the thought of trying to put an economic value on biodiversity (some things are just priceless), there have been attempts to do so in order for people to understand the magnitude of the issue: how important the environment is to humanity and what costs and benefits there can be in doing (or not doing) something. The Economics of Ecosystems and Biodiversity (TEEB) 15 is an organization — backed by the UN and various European governments — attempting to compile, build and make a compelling economics case for the conservation of ecosystems and biodiversity.Much of the Earth's species diversity is concentrated into a few relatively small areas.
BBC NEWS | Science/Nature | Map: Biodiversity hotspots
Biodiversity Hotspots - Hotspots by Region
Page Content Life on Earth faces a crisis of historical and planetary proportions. Unsustainable consumption in many northern countries and crushing poverty in the tropics are destroying wild nature.
What is New Zealand's Biodiversity - Biodiversity
Biodiversity is shorthand for “biological diversity " - t he number and variety of organisms found within a specified geographic region ; and t he variability among living organisms on the earth, including the variability within and between species and within and between ecosystems . Species diversity – the variety of species within a particular geographic area, such as the birds, fish, insects, bacteria and plants that live within a wetland
This Department of Conservation (DOC) site has information about the protection of New Zealand's natural and historic heritage, how and where you can enjoy public conservation places and how to get involved in conservation.
Department of Conservation
Electrical curriculum: watts, ohms, volts, and amps
A quantity of charge is measured in units called COULOMBS, and the word Ampere means the same thing as "one Coulomb of charge flowing per second."