The generation of electrical power is one of the basic needs for maintaining our lifestyle. For this purpose many science projects keep trying to find more efficient ways of power generation and utilization. Alternative sources of power generation are big business today as the traditionally used fossil fuels are just not going to last much longer.

To this effect any science fair project dealing with energy generation will be an eye catching one for the judges. Toss in an unlikely method of generating energy and you may even have a prize winning project. For our project of a fruit powered battery we are going to use a simple circuit with a multi meter that can measure low voltages.

Add alligator clips to the circuit to be attached to the fruit and collect a basket of different types of fruit. You can even add a small light to the circuit to see if it can be lit at the voltage produced.  Now we are ready to record which fruit is the best producer of electricity. Keep detailed records for the power production of each fruit that you use.

You can use the data collected in a tabular form on your display board. Also have the fresh fruit handy for the judges to use on the circuit. Remember each fruit will be used just once. Have fun playing with your science fair project.

Your science project does not have to be complicated to be good. Even a simple machine will do the job. If you build a lever, pulley, inclined plane, wheel and axle, and wedge and make a working machine out of the combination it will be a fantastic science fair project. It will be simple to make as each of these does not take much effort.

It will also have the advantage of using multiple parts of simple machines to make a complex machine. Imagine the old Tom and Jerry cartoons where the mouse trap is so complicated looking. It is essentially a series of simple machines being used together for one single objective, that of a mouse trap. Of course its a different matter that the traps always end up back firing when clever little Jerry is involved.

Now think of a simple task that you would like performed. Decide how many steps it will take to perform the task. Now split up each step into a simple machine that you would like to do the action. Put it all together and attach the simple machines to each other so that there is a domino type of effect and viola you have a killer science fair project all set to go.

If all the science projects were put together some of the most interesting ones would deal with flying. And since getting around in cars can get a bit tedious if you get stuck in a traffic jam it is natural to think that it would be better to make that personal family car fly to the destination of your choice.

So will flying cars ever come out of sci fi movies and books and become a reality? That’s a question that car designers have been asking themselves for decades. Some designs have worked and many other have not. But with each failure the eventual success gains credibility.

Of course once you have real flying cars around there will be other questions as well. Such as how would a flying car be classified? As an aircraft or as a road vehicle. What will be the fuel that it will use? Will it be a green car or will it guzzle non renewable resources? Of course these are minor questions when dealing with the actual thing.

So how soon can you expect the first flying car to be parked in the family garage? Not for a decade as yet, but its coming. And just maybe that science fair project model that you are working on in your garage is the prototype.

Many voice artists take good care of their voices by avoiding a number of food and drink items.  These include a number of spicy foods and aerated drinks. It also includes drinking chilled water. Here we will take the help of a science experiment to see if a singer’s voice gets adversely affected by drinking cold water.

You will need some equipment to record your voice. You can use a mic with the PC as well. Some cold water. A volunteer to sing or you can do it on your own. The hypothesis that we are testing is that drinking cold water makes it difficult for a person to sing naturally. For this we will have to make two sound recordings of the same person singing the same song.

Once before the person drinks cold water and the second time immediately after the person has drunk a glass of cold water. You can pick any song that the person can sing comfortably. It does not have to be some difficult tune, the alphabet song or happy birthday to you will do. Just make sure that they know that they must sing the same song both before and after drinking the cold water.

Now record the observations you have made of the two different sound tracks. Does the voice quality get affected by the cold water? Now this science project will prove if the singers really need to avoid cold water or not.