How can mechanical energy produce electricity? When electric current flows through a coil of wire, a magnetic field is created around the wire. You will remember that from your experience in making electromagnets: that’s why electromagnets work. In this activity the opposite is happening. Instead of producing a magnetic field around a coil of wire…
Activity about Electromagnet. What is an electromagnet? How can you made? Materials needed 1m (1 yd.) of 22 gauge insulated copper wire stripped on both ends Lantern batter large iron nail no longer than 10 cm (4 in.) paper clips Procedure 1. In an activities 8.9 and 8.10, we learned that when an electric current…
Make simple linear motor: In this project you will learn how to make simple linear motor with thin aluminium pipe.It is very easy to make because you don’t require to many things to complete this project. Materials to make simple linear motor: Iron wire Copper wire (spare lead) Connecting wire with crocodile clips Bar magnet,…
Hypothesis If the amount of water is increased the pitch gets lower. I can make music with the bottles of water. Materials needed eight glass soda bottles of the same size and shape water paper slips numbered 1 to 8 pencil Procedure Pour water to different levels in the bottles. Blow gently across the…
When a drop of wax falls down on one side, the candle looses its balance and preponderates to the other side. There the flame grazes the candle, so that a drop of wax falls down also on this side. Candle looses its balance again and preponderates back again. So the candle swings until it runs…
How to Make a Hang-Glider For hang glider making you will need a sheet of A4 photocopy papersome paperclips. Method Fold the sheet in half across its narrowest part (its width). Paperclip both thicknesses together near the fold.Curl the halves of the paper outwards and downwards. Then clip together the corners A and B -…
Inertia of an Egg Topic: To demonstrate the Inertia of an Egg. Materials Required: 1. Raw & boiled eggs 2. Glass plate Procedure: A dozen eggs are placed on a glass plate and one of them eggs is hard-boiled while the rest are raw. How can you find the hard-boiled egg without cracking the shell…
Sucking a balloon into a flask Level: Elementary/Secondary Concept: When water vapor in a frank is cooled and condensed into water drops, the pressure in the flask reduces greatly. Introduction: When water vapor changes into water drops,its volume reduces to less than one thousandth.Using this principle, we can make a virtual vacuum and let a…
in activity you learned about center of gravity. What is role of center of gravity with the nail balancer why don’t the overhanging nails tip the system over? Did you ever see a tightrope walker? They usually carry a low bending pole. Can you see a similarity with the nail balance? Do some research about…
How to make Arch model from Potato. The Arch is an ancient piece of technology and still common now days. Here is showing how you can make your own arch with potato or other hard vegetables. Material: A potato A sharp knife A ruler Hot To Make? Building of an arch is simple, you have…
Make your own Water prism. A prism is a transparent object that separates light into individual beams Difficulty Level: Elementary/Secondary Concept: Dispersion of light, Spectrum, Prism Introduction: We can see a clear spectrum projected on a wall using a plane mirror and water in a vessel instead of a prism. Materials: a water container (Tupperware),…
How to Make a Tornado in a Bottle Tornadoes are formed when warm, moist air swirls together with cool, dry air. They are most often associated with storm clouds that contain vortexes — spirals of rising air. As the vortex sucks in the surrounding air, more air moves in at a high speed to fill…