Ma.gazin.es

Middle School Science Fair Projects Made Fun and Easy | By Dee Schrock

Middle school science fair projects are a transition phase for students, neither too elementary nor too high school level. However, just because it is your transition stage does not mean that you have to be ambivalent about your middle school science experiments, far from it. Instead, you should show off your accumulated knowledge and passionate interest in science by adopting any of the following projects. Just remember that before you choose one, you should have assessed in which field of science you are most interested in. This way, you will be more motivated to do your research, conceptualize your project and then accomplish your vision.

Renewable Energy

mental_floss - Subscription mental_floss magazine is where knowledge junkies get their fix. It takes the chore out of learning and blurs the line between education and entertainment with its hip, quirky content. Covering everything from black holes to the Dead Sea Scrolls, mental_floss is guaranteed to make you feel smart again.

One of the hottest topics for middle school science fair projects today is renewable energy in the form of solar power and wind turbines. You can tap into this interest by constructing a model of how solar panels and/or wind turbines work to provide energy and electricity to home and industries. This is probably one of the easiest and yet most eye-catching middle school science fair projects for many reasons. For one thing, you can purchase ready-made, easy-to-assemble and easy-on-the-pocket kits for solar energy and wind power science projects. For another thing, you can make it as eye-catching as possible with the addition of houses and buildings complete with lights.

Hydrogen Fuel Cell Car

You may also purchase a ready-made kit for the hydrogen fuel cell car, which provides for 30 distinct experiments. You will be able to demonstrate the workings and benefits of the energy-efficient car, which is one of the more notable inventions technologies of the century. Among the experiments contained in the kit are the uses of solar power for vehicle power, the utilization of fuel cell to separate the oxygen and hydrogen atoms in water, and demonstration of electrolysis. Well, of course, you can always make your own experiments just so your middle school science fair projects stand out from the rest of the competition.

Magnetic Levitation Train

Now this is one science fair project that is absolutely possible! You will, of course, need to do your research about the principle behind the magnetic levitation train, purchase the necessary materials like ceramic magnets for the lifter-rails, wood for the guide rails and model cars, and then execute your drawings and plans. You can then perform experiments with the completed Maglev train set such as using gravity to push the car forward and using the car itself to move something along its path. You can be very creative, maybe even perform quantitative and qualitative analysis of your experiments.

Resurrecting the Dead

Fishes, that is. You are basically recreating the technology of cryonics where dead fishes are placed in a state of suspended animation, which is used in Japan to preserve the freshness of the day’s catch. As part of your middle school science fair projects, you can follow the example of two brothers who supposedly resurrected a dead goldfish by using Mountain Dew, water and a 9-volt battery. Of course, you have to do it on a trial and error basis but that’s where the fun of discovery lies. However, conduct your research before you go about killing all the goldfishes in your home’s aquarium.

With these ideas for middle school science fair projects, you will definitely get the attention of the judges and do yourself, your parents and your teachers proud.

For more middle school science fair projects and step-by-step instructions, visit http://www.easy-kids-science-experiments.com. Be sure to check out the site for tons of simple science projects elementary science experiments, middle school, and high school science.
© Copyright 2009. Feel free to reprint this article on your site as long as the article is not modified in any way and the resource information (about the author) is listed as above.Article Source: http://EzineArticles.com/?expert=Dee_Schrock
http://EzineArticles.com/?Middle-School-Science-Fair-Projects-Made-Fun-and-Easy&id=3235916

Product listing

NEW Educational Telescope Science Fair Kit Lab Set

Current price:

$12.08

Type:

Auction

No. of bids so far:

0

Ends in:

0d 16h 19m

Seller: eBay

1962 Seattle World's Fair Commerative Foil of Science Pavilion

Current price:

$12.00

Type:

Auction

No. of bids so far:

0

Ends in:

0d 5h 15m

Seller: eBay

 

NOTE: to keep the site running smoothly, product data is only refreshed once every 10 minutes, approximately. Click on a product to see the most up-to-date data on the seller's page.

What can we all be familiar with metallurgy? Metallurgy is branch involving scientific discipline that educates on the actual methods employed while extracting alloys from their ores, purifying and also alloying these people. This also entails study regarding the processes utilized when generating objects away from precious metals. Yet, every single child understand entirely exactly what metallurgy is dependant on, it could be greater to own a shorter peek of the history of metallurgy.

Science Illustrated - Subscription Science Illustrated is an upbeat, visually spectacular gateway to cutting-edge science, which covers a tremendous range of subjects: from paleontology to space exploration, and medical breakthroughs to the latest environmental insights. Science Illustrated aims to report on the world of science in a way that's dynamic, engaging and accessible for all.

Among the earliest processes associated with used science is the actual process of metallurgy. The background will give all of us a good view of how the method developed and their organization using mining harvests. The history of metallurgy could be dated back to several, thousand B . c . and that is what you call age photographer. It can be the time scale involving your Stone Get older plus the Bronze Era which could also be regarded as the particular switching place between Gemstone for you to Metal. The initial process had been purely pet when the birdwatcher felt into a hot stay fireplace. Obviously, the particular photographer melted and when it cooled men and women observed the progres of their design. The development of the process had been additionally contributed from the miracle with the fire. Many of us could learn from the history of metallurgy that searchers back many years ago relied within the fire for that procedures particularly with precious metals.

Within the 2800 B . c . occurs the Bronze Grow older which is yet another advancement inside metallurgy. Individuals have grow to be brilliant that they produced the alloy of copper as well as container considering that both has been often found in the same ore. The result of that was bronze. Bronze happens to be an investment applied for that weaponry with the armies as well as employed as funds with regard to deal. Inside 1500 Bc, yet another state-of-the-art ended up being obtained in metallurgy. It really is your breakthrough discovery regarding metal which was regarded as probably the most ample steel inside globe but had been challenging to be able to remove. With that next, within the 1200′s, men and women encouraged his or her luck and also tried in order to warm the iron along with outdoor cooking with charcoal in such a way how the carbon dioxide from the smokey barbecue grilling could be transferred to the actual in terms of iron. With this, the particular steel will be hardened along with age Metallic came. But, iron is becoming the steady difficult task in order to the majority of metallurgists considering that it’s very difficult which could just become hammered yet can not be melted. Within the 513 Bc, China could actually think of the heater powerful sufficient to warm metal.

Metals these days are an investment vehicle. In the properties, the homes, to the smallest equipment we all employ every day; your wonder regarding metals will be engaged. Without having these, anything wouldn’t be so easy. Hiring workers rather than concerning the days of the Jewel Grow older and you couldn’t need to reside our planet.

1 following another, metals allow us and evolved. In the past, folks certainly not stopped incorporating parts to the history of metallurgy creating way for the mining harvests for being clearly beneficial along with just about the most considerations within our everyday lives these days. For additional info about metallurgy, visit http://www.historyofmetallurgy.com

Off grid living is becoming more appealing to many people as the cost of energy continues to increase. Unplugging from the electric grid and producing all of your own power is now very possible. By utilizing wind turbines or solar panels, many homeowners are generating their own power, assuming their system is sized correctly. By producing some of your own electricity, you can take at least a small step towards off grid living.

mental_floss - Subscription mental_floss magazine is where knowledge junkies get their fix. It takes the chore out of learning and blurs the line between education and entertainment with its hip, quirky content. Covering everything from black holes to the Dead Sea Scrolls, mental_floss is guaranteed to make you feel smart again.

Let’s start by talking about solar power. Solar panels are a great option for supplying power to many homes and can work in all parts of the world, even in remote areas or places with a harsh environment. The only thing you need is some hardware and lots of sun. If you’d like to build your own solar panel, the best guide I’ve found is  Green DIY Energy Review.   Solar power systems can be big or small and can even be portable to take in your RV. Solar panels can last more than 20 years if properly cared for. They are tough and require very little maintenance.

Some number of solar panels wired together are primary part of any solar power system. In the northern hemisphere, solar panels should be pointed directly south for maximum power output. With older solar panels, it was more important that they point directly at the sun and many solar power systems used motors to rotate the panels so they always pointed directly at the sun, however with more modern panels this is less important.With more modern solar panels, it is less important that they point directly at the sun, but older solar power systems often had motors to rotate the panels as the sun moved across the sky. With more recent solar panels, stationary panels work quite well as long as they are pointed directly south and at the correct vertical angle.  For another good guide to building a your own solar panel visit  Build Solar Panel.

Since solar cells produce Direct Current (DC), the electricity produced by solar cells can be used to power any DC appliance or to charge batteries. Electricity can be provided at night or when the sun isn’t shining by charging batteries during the day.

A power inverter can be used to convert the DC electricity from solar panels into the AC electricity that standard appliances around your house require. A power inverter can be used to do the DC to AC conversion on power coming from either the solar panels or from batteries.

Another way to begin living off grid is with the use of a wind turbine. You can mount a modern wind turbine on a pole or tower, or perhaps even on the roof of your home. These modern wind turbines are fairly small and quite efficient. If you want to generate power at night as well as during the day, wind turbines can do this which is an advantage over solar panels. As long as the wind is blowing, a wind turbine can produce electricity.  To read about how to build your own wind generator take a look at  Earth4Energy Review

Some people use a wind turbine together with solar panels. Both solar panels and wind turbines generate DC electricity so you can use the same batteries and power inverter with both. At night the wind turbine can produce power as long as there is a breeze and on calm, sunny days the solar panels can take over and generate electricity.

IF you want to pull the plug and begin an off grid lifestyle, either of these systems can generate enough power to allow you to do so. They will let you take your first step towards completely pulling the plug.

What is Renewable Energy? | By Xzen Dor

Renewable Energy is an energy source that is derived from a self-renewing sources like Solar, Wind, Water and Geothermal. Renewable Energy may also be defined as an environmentally friendly energy source that does not release toxic substances into the natural environment the way Fossil Fuels (Oil, Gas & Coal) and Nuclear Energy do. Renewable Energy Sources also do not effect earths climate as do Fossil Fuels, and as such are increasingly becoming a viable alternative to burning Coal, Oil and Gas as a means for generating electricity as well as heating & cooling our homes and work environments.

Power Plants that burn Coal and Oil are the largest stationary source for the emission of environmentally dangerous gases like sulfur dioxide, nitrous oxide and carbon dioxide. These toxic gases are responsible for the smog that hangs over our cities, the acid rain that poisons our lakes and rivers and for the death of millions of trees in mountainous regions. Cars and Trucks (that have gasoline & diesel burning engines) are the next largest source of these toxic gases since there are tens of millions of vehicles on the road worldwide.

Another alarming concern is the dangerous increase of Carbon Dioxide and Methane gases in the atmosphere, as these two gases are the major contributors responsible for global warming. These gases tend to trap the Suns energy in the earths atmosphere, and as a result have slowly over the past century and much faster over the last 30 years increased the overall global temperature.

Popular Science - Subscription Travel to the cutting edge of science and technology with Popular Science- and discover a world of incredible inventions and amazing scientific advancements. Be the first to know about the latest developments in cars, electronics, communications, tools, energy, aviation, space exploration, and much more. Popular Science is your guide to what’s new and what’s next.

This temperature increase is believed by a majority of scientist to be responsible for the rapid melting of Glacial Ice which helps in regulating Global Temperature and in keeping Sea Levels low. As more Glacial Ice melts and is not replenished by yearly snows many regions of the planet that depend on the seasonal melting of Glacial Ice for water are getting less water yearly. As the temperature continues to rise more and more Glacial Ice melts releasing massive amounts of fresh water into the oceans, which affects marine life and threatens the coastal regions around the world as sea levels rise.

In an effort to combat these dangerous trends concerned scientist, citizens and corporations are looking at Renewable Energy Sources to supplant the Fossil Fuels we have been using in earnest since the industrial revolution began more than hundred years ago.

Renewable Energy Sources (Water, Wind, Solar)

Water Power is the first Renewable Energy source that has been used by man dating back several centuries to ancient times. In our modern age Water Power is used to generate huge amounts of electricity through the engineering marvel known as Hydroelectric Power Generation. This system in it’s most basic form uses water to rotate a wheel that is attached to a turbine which in turn generates electricity.

Wind Power another common Renewable Energy Source like Water Power has been harnessed by man for several hundred years. It has been used to provide the energy needed to irrigate fields, grind grains… Wind Power in our modern age is used to generate electricity through the use of Wind Turbines in much the same way as is done in Hydroelectric Power Generation (The difference being that Air is the working fluid not Water).

Popular Science - Subscription Travel to the cutting edge of science and technology with Popular Science- and discover a world of incredible inventions and amazing scientific advancements. Be the first to know about the latest developments in cars, electronics, communications, tools, energy, aviation, space exploration, and much more. Popular Science is your guide to what’s new and what’s next.

The last Renewable Energy Source of important consideration is Solar Energy (there is also Geothermal Energy, Ocean Wave etc…). Solar Energy or the Energy that comes from the Sun as heat and light can be used to heat and cool our indoor environments as well as produce electricity. With a device known as a Solar Cell, Sunlight (or any light source) can generate electricity directly without mechanical means. A Solar Cell is able to do this because it takes advantage of the particle nature of Sunlight (The Photon). Solar Energy can also be used to Super Heat a liquid (such as water) producing Super Heated Steam which drives a turbine to produce electricity.

With todays technological advancements Wind and Solar Power are benefits home owners can take advantage of, as these two Renewable Energy Sources are fairly easy to implement in any home. The application of these technological advancements reduce your carbon footprint as well as your energy bill. Implementing Renewable Energy Technologies in your home increases it’s resale value and allows you take advantage of the many tax breaks offered by federal and local governments for installing Green Energy Technologies in your home.

Some of you may be thinking that installing an array of Solar Panels or a Wind Turbine on your roof or back yard will be expensive and difficult proposition, but with the current state of Renewable Technology this is not the case. For instance you can easily make your own Solar Panels for under two hundred dollars which will save you thousands of dollars over commercially available units!

You can also easily build a Solar Heating Storage Unit to heat your entire home making you much less dependent on heating oil, gas or electricity. It is now possible for home owners to be almost completely free of Fossil Fuels and the technologies that use them for generating power, which long term saves you money and helps restores the earths natural balance by reducing Green House Gases.

In conclusion Renewable Energy is not a short term trend that will disappear over time, but it is and will become an intricate part of how we manage our lives making it a smart and essential solution in counteracting the effects of Global Climate Change that is affecting millions of people across the globe as well as the other creatures that share the planet we live on. Renewable Energy is Safe, Clean and Cost Effective and over time will have Cost Advantages over Fossil Fuels; making Renewable Energy a good deal for your Bottom Line, Community and the Planet.

Learn more on how you can join the Renewable Energy Revolution and become Energy Independent.

Article Source: http://EzineArticles.com/?expert=Xzen_Dor
http://EzineArticles.com/?What-is-Renewable-Energy?&id=2969427

Electrical Power and Energy | By Wayne Storr

Power is an electrical quantity that is measured in watts, and is the rate at which energy is either being absorbed or produced by a circuit. We know that light bulbs and heaters absorb energy and that the higher their value in watts the more energy they will consume. Likewise, batteries and generators produce energy and the greater their electrical rating the more power they can deliver to the load. The unit of electrical power is the watt with its symbol being a large letter “P” indicating constant DC power or a small letter “p” indicating a time-varying AC power.

Seed magazine - Subscription Seed is more than a magazine about science and its discoveries. It treats science as a lens for viewing the world and explores its influence on the social, political, economic, aesthetic, moral, and intellectual landscapes of our time. Seed presents the insights, opinions, and profiles of a changing cultural shift rooted in science, all presented alongside cutting-edge design and photography. Subscribe to the digital edition and get early access to each issue before it reaches the newsstands. You’ll also receive a host of digital enhancements like embedded videos, slideshows, and more.

Electrical power is related to energy which is the capacity to do work. It can also be defined as the rate of by which energy is transferred. If one joule of work is either absorbed or delivered at a constant rate of one second, then the corresponding power will be equivalent to one watt so power, P can be defined as 1Joule/sec = 1Watt. Then we can say that one watt is equal to one joule per second and electrical power can be defined as the rate of doing work or the transferring of energy.

Equally we can define energy as being watts per second or joules. So if the power is measured in kilowatts (thousands of watts) and the time is measure in hours, then the unit of electrical energy is the kilowatt-hour, (kWh) and 1 kWh is the amount of electricity used by a device rated at 1000 watts in one hour.

Kilowatt-hours are the standard units of energy used by the electricity meter in our homes to calculate the amount of electrical energy we use and therefore how much we pay. So if you switch on an electric fire with an element rated at 1000 watts and left it on for 1 hour you will have used 1 kWh of electricity. If you switched on two electric fires each with 1000 watt elements for half an hour the total consumption would be exactly the same amount of electricity – 1kWh. So, consuming 1000 watts for one hour uses the same amount of power as 2000 watts (twice as much) for half an hour (half the time). Then for a 100 watt light bulb to use 1 kWh or one unit of electrical power it would need to be switched on for a total of 10 hours (10 x 100 = 1000 = 1kWh).

So we now know that the unit of power is the watt with the power absorbed by an electrical circuit being given as the product of the voltage, V and the current, I which gives:

P (watts) = V (volts) x I (amperes)

Also, by substituting Ohm’s Law into the equation above we can also define a constant DC power as being:

P (watts) = I^2 (amperes squared) x R (resistance)

or

P (watts) = V^2 (voltage squared) / R (resistance)

Then there are three possible formulas for calculating electrical power in a circuit. If the calculated power is positive, (+P) then the circuit or component absorbs the power. But if the calculated power is negative, (-P) the circuit or component delivers power in other words it is a source of energy.

Power Rating

Maxim - Subscription Maxim, the world's leading men's magazine gives men what they want -- beautiful women and intense sex. Maxim features beautiful women, cool gadgets, fast cars, sports, entertainment, and other male obsessions.BEST DEAL!!! CLICK HERE FOR A SPECIAL 3 YEAR OFFER.

Electrical components are given a “power rating” in watts that indicates the maximum rate at which the component coverts the electrical energy into another form of energy such as heat, light or motion. For example, a 1/4W resistor, a 100W light bulb etc. So energy is used by electrical devices to convert one form of power to another so for example, an electrical motor will covert electrical energy into a mechanical force.

Electrical motors and other electrical systems have an efficiency rating defined as the ratio of power converted into work to the total power consumed by the device. Efficiency is expressed as a decimal fraction but is generally defined as a percentage value such as 85% efficient. So we can define efficiency as being equal to power output divided by power input x 100%.

The efficiency of an electrical device or motor will always be less than one (100%) due to electrical and mechanical losses. If an electrical device has an efficiency rating of 85% then only 85% of the input power is transformed into mechanical work the other 15% is lost in heat or other losses.

Domestic electrical appliances such as washing machines, driers, fridges and freezers also have energy efficiency ratings that indicate their energy usage and cost. These ratings are given as “A” for efficient and “G” for less efficient.

So remember, the more energy efficient is the device, the less energy it will consume and the more money you will save as well as being helpful to the environment.

Learn more about electrical power and energy and lots of other good basic electronics tutorials at http://www.electronics-tutorials.ws.

Article Source: http://EzineArticles.com/?expert=Wayne_Storr
http://EzineArticles.com/?Electrical-Power-and-Energy&id=3150307

Why Do We Say Insects Are Everywhere? | By Debashishk Sah

Insects live everywhere.

You will find them on the highest mountains, in the deepest caves, on the coldest snow-fields and in the hottest places on earth. Why, there is an insect that lives right at the edge of the roaring, tumbling Niagara Falls! Some insects live in the still waters of ponds, others in the stems of leaves. The only place where you will not find insects is under the ocean.

Science Illustrated - Subscription Science Illustrated is an upbeat, visually spectacular gateway to cutting-edge science, which covers a tremendous range of subjects: from paleontology to space exploration, and medical breakthroughs to the latest environmental insights. Science Illustrated aims to report on the world of science in a way that's dynamic, engaging and accessible for all.

Insects are uninvited guests in your home too. You will find them under the rugs, in your cupboards, even / in your rice, sometimes! You just can’t escape them! Did you know that scientists who study Insects estimate that the average number of insects for each square mile of land equals the total number of people on the earth.

STAR FACT

Why are there no insects in the ocean?

Though insects are found everywhere on land and water, the one place where there are no insects is the ocean. Do you know why? It is because their bodies cannot survive in salt water. Though a few varieties are found near the sea, they stay near the shore, and take care not to go into the water at all.

Why are some insects able to live in the water?

Thousands of insects live beneath the calm still waters of lakes and ponds. Their rough, water-repellent coats trap a thin layer of air on their bodies. These bubbles of air store oxygen for them to breathe. Thanks to those air bubbles, insects can stay below the surface indefinitely, and dive as deep as about thirty meters!

Insects that live under water have adapted themselves to their surroundings. The water boatman uses its hind legs like oars. It swims upside down, and pops up to the surface to breathe. The fringes on the diving its legs help to push it through the water, while the air that it stores under its wings helps it to stay under water.

Mosquitoes lay eggs in water and the tiny worm like larvae move through the water by wriggling. The young ones of the dragonfly will also stay under water, before they are developed enough to live on land. The brown china mark caterpillar builds its home with the leaves of the water lily and after it is fully developed, it will eat its home, for the leaves provide it with food too! Isn’t that clever?

http://indianrecepies4u.info/
Article Source: http://EzineArticles.com/?expert=Debashishk_Sah
http://EzineArticles.com/?Why-Do-We-Say-Insects-Are-Everywhere?&id=2381565