Xkcd - A Webcomic - Outreach. How Big is a ... ? How to Make Lava Lamps - Oozing Goo. Make Your Own Lava LampIf you're a going to attempt to make your own lamp, we have all the formulas here.
First I should say that the experience can be fun but it is not neccessarily cheap. As a matter of fact, just buying a new lamp is probably cheaper. On the other hand, the obsessively inquisitive won't sleep until they crack the code! The difficult part about making your own liquid motion lamp is, of course, the motion. How to Make a Lava Lamp with Household Ingredients. Edit Article With Vegetable Oil and WaterWith Mineral Oil & Alcohol Edited by Sondra C, Nicole Willson, Jack Herrick, Krystle and 100 others Have you ever caught yourself being hypnotized by a lava lamp?
You hold it in your hand, move it slightly, and watch as the liquid quivers and separates into different shapes and colors. Then you look at the price tag - and put it back. Biological classification keywords. Food Web - Menu. Science Made Simple. 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. Emerald tree boa. 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)17 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. Map: Biodiversity hotspots. Much of the Earth's species diversity is concentrated into a few relatively small areas. Twenty-five regions have been identified which together cover only 1.4% of the Earth's land surface but contain nearly half of all plant species and a third of all terrestrial vertebrate species.
All are under pressure from human activities. BBC News Online looks at range of biodiversity hotspots. Show Me Science - The Importance of Biodiversity. Biodiversity - from "The Wild Classroom" What is New Zealand's Biodiversity - Biodiversity. Biodiversity is shorthand for “biological diversity" - the number and variety of organisms found within a specified geographic region; and the variability among living organisms on the earth, including the variability within and between species and within and between ecosystems.
Elements of biodiversity include: Genetic diversity – the varied genetic make-up among individuals of a single species 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 Ecological diversity – the variety of ecosystem types (such as forests, deserts, wetlands, grasslands, streams, lakes and oceans) and the communities within them. These communities interact with each other and with the non-living environment. For example, the mountain stone weta contains a form of anti-freeze in its tissue to avoid the damage caused by ice crystals in its body. 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.
" If we were talking about water, then Coulombs would be like gallons, and amperage would be like gallons-per-second. What flows inside wires? It has several names: Charges of electricity Electrons Charged atoms (ions in salt water etc.) Design & Technology on the Web - Resources and help for stud. D&T Online:electronics menu.