Download this and other animations for a single user or for an entire classroom . HowBig is also available as a ready-to-use PowerPoint® Slide Presentation . How to use: Use the left and right arrows to change magnification.
Make Your Own Lava Lamp If you're a going to attempt to make your own lamp, we have all the formulas here.
Fantastic Fluid Flow Take a beaker of water and a beaker of golden syrup and turn them upside down. Aside from making an enormous mess, you will notice that very different things are happening to each one. The water empties quickly in an … Entrancing Vortices
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.
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.
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 . Elements of biodiversity include:
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."