How Electricity Works" Humans have an intimate relationship with electricity, to the point that it's virtually impossible to separate your life from it. Sure, you can flee from the world of crisscrossing power lines and live your life completely off the grid, but even at the loneliest corners of the world, electricity exists. If it's not lighting up the storm clouds overhead or crackling in a static spark at your fingertips, then it's moving through the human nervous system, animating the brain's will in every flourish, breath and unthinking heartbeat. When the same mysterious force energizes a loved one's touch, a stroke of lightning and a George Foreman Grill, a curious duality ensues: We take electricity for granted one second and gawk at its power the next. More than two and a half centuries have passed since Benjamin Franklin and others proved lightning was a form of electricity, but it's still hard not to flinch when a particularly violent flash lights up the horizon.
The Energy Story - Chapter 1: Energy - What Is It? Energy causes things to happen around us. Look out the window. During the day, the sun gives out light and heat energy. When a car drives by, it is being powered by gasoline, a type of stored energy. The food we eat contains energy. We learned the definition of energy in the introduction: "Energy Is the Ability to Do Work." Energy can be found in a number of different forms. Stored and Moving Energy Energy makes everything happen and can be divided into two types: Stored energy is called potential energy. With a pencil, try this example to know the two types of energy. Put the pencil at the edge of the desk and push it off to the floor. Now, pick up the pencil and put it back on the desk. How Do We Measure Energy? Energy is measured in many ways. One of the basic measuring blocks is called a Btu. Btu is the amount of heat energy it takes to raise the temperature of one pound of water by one degree Fahrenheit, at sea level. One Btu equals about one blue-tip kitchen match. 1,000 joules = 1 Btu 1.
Circulatory System - Kids Science Videos Circulatory System for Kids The human circulatory system consists of vessels, muscles and organs that help and control the flow of the blood and lymph around the body. It is collectively composed of the cardiovascular system and the lymphatic system with the heart, arteries, capillaries, veins and the blood being the main parts. The circulatory system moves nutrients, gases, and wastes to and from cells to maintain homeostasis. It helps fight diseases, maintains body temperature and pH. Play Quiz Games : NeoK12 is iPad & Android tablet ready. Science Games, Diagrams & Activities : Pictures & School Presentations : Science Videos & Lessons:(Reviewed by K-12 teachers) Search Videos Suggest Science Videos Click below to find & suggest other science videos. Topic : Circulatory System Standards Common Core State Standards Videos are embedded and streamed directly from video sites such as YouTube and others.
Film: Skurt om el - så funkar den - E.ON Sveriges grönaste TV-reporter Skurt har, särskilt under de senaste åren, ägnat sig åt viktiga programprojekt. Han anser att innehållet i de här filmerna är något av det allra viktigaste som han sysslat med. Det börjar med ett strömavbrott just före ishockeymatchen på TV och slutar med en lek om att spara el. Däremellan skildras hur elen tillverkas på sex olika sätt. Energikällornas plus och minus diskuteras och exempel ges på åtgärder för att den livsviktiga elen ska nå fram - i alla väder. Del 1. Skurt drabbas av strömavbrott precis innan ishockeymatchen på TV. Del 2. Skurt och Ingamay undersöker hur elen tillverkas. Del 3. Skurt tar hjälp av Johan och Mattias på E.ON för att reda ut vad som är bra och vad som är dåligt med de olika metoderna att tillverka el. Del 4. Skurt tar reda på hur elen kommer ut till våra hus. Del 5. I femte och sista delen spelar Skurt och hans bästisar Ebba, Torkel och Egon ett spel med frågor om el. Skurt om elsäkerhet Skurt om elsäkerhet
AlwaysPrepped – A Great Partner We’re super excited about our free partnership with the great team at AlwaysPrepped. 6 reasons to join AlwaysPrepped All your Socrative activity results will be viewable in one location.Organize the results by student or activity.See Khan Academy, Engrade, NWEA & Jumprope data there as well.It will save you time.New features are coming every week!They have an awesome Blog. VIDEO - The AlwaysPrepped and Socrative connection AlwaysPrepped – Join Here! Behind the News - 27/10/2009: Nuclear Power Another issue bubbling away at the moment is nuclear power. When it comes to the methods we have developed for generating electricity, all seem to have their upsides and downsides. But there is one type of power generation happening in many places around the world that the Australian government has vowed not to touch. It's called nuclear power. But a poll has just been released saying that half of Australians surveyed want it brought back to the table as an option for the future. NATHAN BAZLEY, REPORTER: Energy is all around us - from the sun to the wind and the thousands of plants and animals living in between. It sounds like an amazing idea but it's been around for quite a while. Across the globe there are more than 430 operating nuclear power plants in 31 different countries. The amazing thing about this stuff is that it naturally releases radiation, which is a type of energy. Once they put it in a reactor and treat it a certain way, Uranium releases huge amounts of radiation.
The Franklin Institute - Exhibit - Electricity Feel the force of electricity by manipulating electrical phenomena, exploring authentic artifacts, and tackling questions of sustainable electricity generation and use. This exhibition is energized, with interactive devices and graphics glowing from within the darkened gallery, illustrated by simple, edgy imagery. At its foundation, electricity is derived from the interaction of charges. Experience these interactions yourself by becoming a conductor for static charge. See the electrical impulses inside your own muscles. Use your body to complete a circuit. Electricity will spark your curiosity about the power of this phenomenon and what it holds for our future. Antique Lightning Rods The Electricity exhibit is now home to an intriguing collection of eight artfully-handcrafted antique lightning rods, dating from the late 18th through mid-20th centuries. "Compromising Choices" demonstrates how sustainable electricity generation requires global decision-making. PECO Smart Ideas
Reproductive System - Kids Science Videos Reproductive System for Kids The human reproductive system comprises of organs that allow us to produce offsprings for the survival of the species, and passing on hereditary traits from one generation to the next. In the male, the reproductive organs include the testes, accessory ducts, accessory glands, and penis. In the female, the reproductive organs include the uterus, uterine tubes, ovaries, vagina, and vulva. Play Quiz Games : NeoK12 is iPad & Android tablet ready. Science Games, Diagrams & Activities : Pictures & School Presentations : Science Videos & Lessons:(Reviewed by K-12 teachers) Search Videos Suggest Science Videos Click below to find & suggest other science videos. Topic : Reproductive System Standards Common Core State Standards Videos are embedded and streamed directly from video sites such as YouTube and others. NeoK12 makes learning fun and interesting with educational videos, games and activities for kids on Science, Math, Social Studies and English.
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