Feedback Science Fair Project Ideas Below is a list of great ideas for potential science fair projects. Pick something you're interested in and try it out for size. The projects are categorized by their difficulty.
One end of a magnet is attracted to the earth's north pole, this end of the magnet is called its north pole. The other end of the magnet is called its south pole. The opposite poles of two magnets attract, the like poles of two magnets repel.
Electricity is a flow of atomic particles called electrons.
Electrons will flow easily through most metals. Electrons travel from the minus end of a battery and are attracted to the plus end.
Electrons traveling through a wire, create a weak magnetic field around the wire. Electrons traveling through wire, coiled around an iron nail cause the nail to become a magnet. This device is called an electromagnet.
Build an electromagnet The elastic band holds each end of the wire against the battery terminals. Only use a 1. Only remove the insulating enamel from the last 1 cm of the wire. Removing too much insulation could cause a short circuit if the bare wires twisted together.
A short circuit would cause the wire to get very hot.
PROJECT #1: Build an electromagnet. The elastic band holds each end of the wire against the battery terminals. Only use a volt AA battery with this electromagnet. Making a lemon battery is one of the classic science projects for kids. It is inexpensive, easy to set up and fairly easy to perform. If you take a quick peek at the supplies photo below, you’ll see we need a voltmeter. Don’t let that scare you. A fruit battery doesn’t generate enough power to. Primary Projects (Grades 1 - 4) The following are display type projects suitable for beginners.
Your electromagnet will get warm, this is normal. Wrap all of the wire onto the iron nail leaving about 10 cm of both ends of the wire exposed. Be careful to wrap in the same direction from beginning to end. Magnet wire is coated with a special enamel coating.
This insulation must be removed from both ends of the wire to allow a metal to metal connection with the battery.
Fold a small 2 cm square piece of sandpaper over the end of the wire and sand, by pulling the paper, about one cm at each end. The colour of the wire changes as you expose the copper metal under the insulation.
Before connecting your electromagnet to a battery, test it to see if it attracts iron.
Bring the tip of the nail close to some paper clips, metal paper clips usually contain iron. Now connect your electromagnet to a battery, one wire touching the minus end the other touching the plus end. Use an elastic band pulled over your battery to hold the wires in place.
Your electromagnet should now strongly attract metal paper clips. My electromagnet doesn't work! Rechargeable batteries are excellent. Test them with a permanent magnet. Higher voltage batteries will cause the electromagnet to overheat.
An AA battery will cause your electromagnet to get warm, this is normal. Reverse your battery connections, has this changed the north pole? Simple Speaker Speakers are found in electronic equipment such as radios.
A speaker is a device that converts electrical energy into sound energy. Most speakers employ two magnets to accomplish this - an electromagnet and a permanent magnet.Over Free Science Fair Projects with Complete Instructions.
Make a Battery from Potato. Introduction: Batteries generate electricity through a chemical reaction between two different electrodes and one electrolyte.
Oct 02, · Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.4/5(1K).
Circuit Science Projects Build a Circuit. A circuit is a path that electricity flows along. It starts at a power source, like a battery, and flows through a wire to a light bulb or other object and back to other side of the power source. You can build your own circuit and see how it works with this project!
PROJECT #1: Build an electromagnet. The elastic band holds each end of the wire against the battery terminals. Only use a volt AA battery with this electromagnet.
Potato & Battery Science Projects By Amanda Gronot; Updated April 24, Though it can't power a computer, you can make a battery out of a potato — and many other foods, for that matter.