Xkcd - A Webcomic - Outreach. How Big is a ... ? How to Make Lava Lamps - Oozing Goo. 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. To do your wallet a favor and make a lava lamp with household ingredients, follow these instructions. Ad Steps Method 1 of 2: With Vegetable Oil and Water 1Get a 16- or 64-oz soda or water bottle. 6Place a strong flashlight or search light under the bottle.
Method 2 of 2: With Mineral Oil & Alcohol 1Get a glass container. Tips You can also add decorations like glitter, sequins, or tiny beads.If you don’t have Airborne or Alka-Seltzer, salt works as well.Lava lamps such as these are a great way to reuse empty jars such as those used for peanut butter and jelly. Warnings. Biological classification keywords. Food Web - Menu. Science Made Simple :: Simple science. 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 A vortex is a rapidly whirling spiral of fluid or gas rotating around its own centre. We see vortices around us all the time: from water going down the plug hole to tornadoes and hurricanes. The Science of Sound Our hearing is one of our most important senses, necessary for basic communication, speech and awareness.
Astonishing Diffusion Diffusion is the movement of something from an area of high concentration to a lower concentration. What is Thunder? Thunder is the sound that accompanies lightning during a thunderstorm. Magnificent Microscopes A microscope is an instrument that, using lenses, can be used for viewing objects that are too small to be seen by the naked eye. Fantastic Fractals What is a fractal? Deep Diving Ketchup Sachet. 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. In a recent report, The Economics of Ecosystems and Biodiversity for National and International Policy Makers 2009, TEEB provided the following example of sectors dependent on genetic resources: In addition, it is estimated that implementing REDD (Reducing Emissions from Deforestation and Forest Degradation) could help.
Science/Nature | 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. California Floristic Province California's extensive area and great diversity of habitats means it has a very large range of animal and plant species, which includes the world's largest redwood trees. The California Floristic Province covers 70% of the state and spreads into Oregon and northern Mexico.
Over 2,000 of the plant species that grow in the province occur nowhere else in the world. At present, 9.7% of the total land area of the California Floristic Province is protected. Central America Some conservation efforts are under way, however. Caucasus Polynesia and Micronesia Atlantic Forest, Brazil Madagascar. 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.)
Electric charge Electrical substance The Electron sea The ocean of charge Electric fluid "Charge-stuff" Why are Amperes confusing? Simple: textbooks almost always teach us about amperes and current, but without first clearly explaining the coulombs and charges! If we'd never learned the word "gallon", and if we had no idea that water even existed, how could we hope to understand "flow? " We only can understand the electrical flow in wires (the amperes) if we first understand the stuff that flows inside wires. The movable charge-stuff within a metal gives the metal its silvery metallic color. Whew. Design & Technology on the Web - Resources and help for stud.
D&T Online:electronics menu.