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The Scientific Method, Why Your Child Should Be Using It Often.


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Article by Chuck Lunsford

The scientific method is not just something that you learn in grade school in order to pass science class. The scientific method is something that all of us use on a daily basis in order to make sense of the world around us. The scientific method is basically the process that we go through in our minds to ask questions and find answers. The scientific method roughly follows the following pattern:

1. The first step is to make an observation and description of a phenomenon or group of phenomena. In other words, you observe a problem or a question and define exactly what the issue is in order to make more sense of it.

2. Formulation of a hypothesis to explain the phenomena. A hypothesis is a theory or an idea of how something can be worked out or how a problem can be solved. Through the process of the scientific method you will work to prove that your hypothesis is in fact true.

3. Use of the hypothesis to predict the existence of other phenomena. In some cases your hypothesis is part of a sequence of events and you are curious to see how altering a specific occurrence will alter the overall result of a process. Your goal is to predict quantitatively (meaning with physical evidence) the results of new observations.

4. Now you take action. You perform a series of experimental tests of the predictions/hypotheses. With more complicated scientific experiments (not necessarily anything that your child will encounter in their schooling) several independent experimenters and properly performed experiments are meticulously planned and carried out. In the case of a child’s science project or simple day-to-day use of the scientific method, the process of experimentation is much cruder. You can test your ideas in a matter of seconds in some cases and many of the testing that we all do is done mentally and in our homes, schools, or workplace, not in a laboratory.

5. Repeat steps 3 and 4 until there are no discrepancies between theory and experiment and/or observation. In other words, ‘If at first you don’t succeed, try again.’ Many times our initial theories or predictions of what might happen in an experiment are wrong. There is no shame in guessing wrong. What is important is that you continue trying to formulate new ideas and solutions until you find a hypothesis that works.

The scientific method is not as complicated as you may think, and it is important that your child be using the basic outline of the scientific principle in his or her daily life. For example, say that your child is drinking juice from a plastic cup and notices that a puddle has formed under the cup. What should your child do? A child without an understanding of the scientific method is stuck and may call on a parent to just solve the problem for them. On the other hand, when a child understands how to solve problems the situation can be controlled without parental intervention. A child with an understanding of the scientific method may follow the following steps:

1. Identify the problem: There is a puddle of juice underneath my cup.

2. Form a hypothesis: Maybe there is a hole or crack in my cup.

3. What other phenomena are present with this hypothesis: If there is a hole or crack in my cup it should still be leaking until the juice is gone.

4. Take action: lift the cup off the table and see where the drips are coming from, find the location of the crack.

5. Repeat the process if hypothesis is not proved: I didn’t see a hole or a crack, maybe it is just water condensing on the outside of the cup.

6. Repeat the process to see if water is in fact forming on the outside of the cup.

Just Science Projects is one of the leading online sources for science projects for kids websites. Visit Just Science Projects for fun elementary and middle school science experiments and science fair guides. Visit Just Science Projects or call 206-498-6502 today!










Tagged Child, Method, Often., Scientific, Should, Using

Scientific Experiment Proves Usefulness of Electrical Insulation Testers


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Article by Jeremy Smith

Anyone who has ever worked with electricity is aware that the insulation that separates particular wiring is very important to prevent arcing. It can be dangerous to people in the area, as well as to the machinery or homes where the wiring is attached. In the manufacturing industry, the high voltages of electricity needed to run machinery can be deadly to workers if the insulation protecting the wiring is not inspected or tested regularly. It could allow gaps and breakage that can maim or even kill a person. To see just a portion of what electricity can do and some simple ways to create it, there are some very basic experiments that can be done with insulation testers. One must be careful to follow directions carefully, though. Getting a dose of electricity can be dangerous for some people, especially if they have a heart pacemaker or the electrical charge is of a high voltage. An adult should always be present and protective safety gear should be worn at all times.

The first thing to remember is not to let the two metals in the experiment touch together. This puts the exclamation point on the need for insulation between different wires used to conduct electricity. Here are some basics. Collect some 18-gauge copper wire, some wire cutters, a few large paperclips, a small flashlight bulb, some lemons and an electrical multi-tester also. This will give a reading of the voltage of electricity, or at least the fact that electricity is being created in this experiment.

The next step is to roll a lemon forcefully between the hands to release the juice in the fruit. Straighten a paper clip and insert it about an inch deep into the lemon. Fresh lemons are best, since the juice is more acidic.

Next, insert the copper wiring into the lemon in the same manner, but separate from the paper clip. Remember, if the metals touch, they can arc or short each other out. Use a multi-tester to see if there is a reading on it. If it is not, the experimenter can repeat the above steps, attaching paperclip to paperclip and copper to copper with several lemons. Next, touch the wires to the base of the light bulb, making sure the wires do not touch each other.

The acid in the lemons in combination with the metals creates both positive ions, in the paper clips, and negative ions, in the copper, that create the electricity needed to light the bulb. This is the same principle used to create higher voltage electricity used in automobile batteries and even the batteries used in common flashlights. Keeping the wires or cells of positive and negative energy separated is important in protecting oneself and others from harm, while taking advantage of the many uses for electricity. Having done this experiment shows that there is more than one way to create electricity, as well as a tip in being safe about its use.

Author writes about a variety of topics. If you would like to learn more about insulation testers, visit http://www.hoytmeter.com/.










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Tagged Electrical, Experiment, Insulation, Proves, Scientific, Testers, Usefulness
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