This is one of the Science Fair experiments where you have to try different materials to find out which ones conduct electricity well.
Electricity was known to exist since times when grandfather and skins were rubbed together by the ancient Greeks, resulting in the production of static electricity.
The first remarkable achievement in this field was Alessandro Volta, Italian physicist who developed the first cycle in 1800. He also showed that the circuit will be closed, or complete, in order for electricity to flow through it. Science Fair experiments can be conducted with a circuit that show this rule.
student Volta, the Georg Simon Ohm, made the next discovery in 1826. He noted that some materials do not allow electricity to pass through freely. In other words, from the electricity running through them. This resistance circuit is measured by units called ohms and is abbreviated by the Greek letter omega (?).
Some material allows electricity to pass through them and others do not allow it to go so well. Such materials which allow electricity to pass through them are known as conductive material. Such material that resists the passage of electricity through them are called insulators. The resistance of the conductive material is low and resistance insulators is high. The Science Fair experiments, we can use copper wire as conductor and plastic coating insulators.
In this experiment the different materials will be tested by you, to see if they are insulators or conductors. You have to figure out the same by attaching different materials to the circuit and make a note of how bright or low light bulbs is. You have to create your own bulb your cycle in order.
- paper clips, string, plastic, foil, rubber bands, etc …
- battery (6V)
- 3 pieces of wire leads that have alligator clips attached to both ends
- bulb (6V) with wires attached
- insulating surface such as a chopping board apartment
- Create the circuit to test the material.
- Connect either terminals of the battery wire. One end of the wire is attached to the black (-). Terminal free end that should be connected to the lamp lead
- One end of the red wire should be attached to the (+) terminal and the free end should be left as it is for different materials to be used.
- Attach second lead ball to the other end of the yellow color wire and let loose end as it is for different materials to comply with it.
- Now, red, and yellow wire will be one free end of each. This is where the test subject must be connected.
- The Science Fair experiments, data is always recorded. So drawing table with three columns to write the content type, source materials and pear display.
- Now connect the first pieces of material cycle.
- Write if the bulb light up and how bright she is. Continue all other materials.
- You can attach Ohm meter and write down the reading table.
- Now make another table with three columns to write the names of the conductors, poor conductors and insulators.
Note that when the bulb is bright, the material has a high conductivity and low resistance, and should be written in an editorial column. When the bulb is small, the material has a low conductivity and goes poor conductor column. When the bulb does not light, there is no conductivity and high resistance, and the content should be written in isolation column. Now that you’re excited to go ahead with this experiment, the next step would be to download a free copy of “Easy Steps to award-winning Science Fair Projects” from the link below now.