Stunning Science Projects for 8th Graders: Salt Water Electricity

If you are searching for cool science projects for 8th graders, then you just come to the right place. Here are simple project that you can learn about the electricity component on the battery. It helps you to learn about the electricity project, especially about the energy that can made only from the salt water. Sounds interesting, isn’t it? Well, the materials that you need to get is also easy enough. You might need to get several things before you start to make this project. It’s about making cool project with nice setting on your home. Here we go, let’s check out these cool experiments!

Science Projects for 8th Graders

Get Ready with Science Projects for 8th Graders


First thing first, let’s prepare the material that you need for the science projects for 8th graders. It’s including:

Water
Small glass jar
Measuring spoons
Salt
Zinc-coated nail
Copper-coated wire
Tape
2 insulated wires with alligator clips on both ends.
Voltmeter

You can borrow the voltmeter if you have no some voltmeter on your home. After the material is prepared well, the procedure that you can do is by making saltwater solution. It can be done by mixing the water on small glass jar with a teaspoon of salt. Put the zinc-coated nail in the solution. You need to tape it so it will stick properly. This nail will become negative electrode. The next thing you have to do is by putting copper-coated wire on the opposite side. It will become positive electrode.


Now, you can connect the alligator clips between the electrodes with voltmeter. Observe the voltmeter. You will see about how much electricity that transmitted on there. It must be a cool thing that now you know about how the batteries work. You also can add the salt amount on the jar. Start observing again on the voltmeter. It shows different current on voltmeter. You can make a conclusion about these special science projects for 8th graders, which you can do easily.


Well, it’s a good thing for you to learn about the battery principle to work. It’s a simple experiment that you can do in no time. If you are curious about how this battery can work, then just replace the voltmeter using the LED lamp. It might bring different result. Of course, you can make some graph about the correlation between the salt amount and the current result. Enjoy these science projects for 8th graders and good luck for your plans.

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