Conserving Fossil Fuels Materials Required: Paper and Pencil Ever wondered why people burn items like coal, oil and natural gas? These elements contain a sort of energy in them, which is released, when they are burnt and this energy is later used by the people for their various activities. This sort of energy is called “fossil fuel” and it is basically the remains of animal life and vegetation, that contain energy...

Hanging in Mid-Air Materials Required: A hair dryer Several hardbound books A ping-pang ball Stiff cardboard of about 5-6 inches A square A table Though it might look like magic to suspend a ping-pong ball in mid-air, actually it’s far from that. The secret that you may think belongs to this magic trick is balancing air push and pressure. Place a hair dryer on a table, point it in such a...

Waves of Energy Materials Required: Stiff paper Thread Pencils Modelling clay String Scissors Quart milk cartons Adhesive tape Just like waves break on the sea-shore, similarly energy waves, like sound waves and radio waves too flow in a similar way. We all know that a wave rises and then falls. The part of the wave’s movement, where it reaches the highest point, is known as its “crest” and the lowest portion...

Transporting Energy Materials Required: Miniature 6-volt hobby lamps Lamp sockets Hookup wire Jumper leads with alligator clip ends Six-volt lantern battery with spring top connectors Modelling clay Ice-cream bar flat sticks Glue or adhesive tapes Toy-buildings Scissors Screwdrivers The electricity that burns the lamps at home is the result of energy changing forms several times, as it is being transferred to the end use from a great distance. There are several...

Transfer of Energy Materials Required: Two small-sized brick cartons An old bucket An old shirt Sand Water Liquid white glue A tablespoon Two pencils Two thermometers Cardboard measuring around one square foot Scissors A stick Paper A watch Heat energy is transitional i.e. it can be moved through an object, or transferred from one object to another. To carry out the experiment, place two empty, pint-sized milk cartons on the side,...

Storing Electrical Energy Materials Required: 470 micro farad, 350-volt capacitor Two-volt T1 size, light-emitting diode (LED) Two “D” cell batteries Two insulated jumper leads, with alligator clips on both ends Modelling clay Components that perform various tasks in an electronic circuit are known as Capacitors, in electronics. They also store electricity temporarily. Capacitors have to be charged up with electricity, unlike the case of batteries. With the help of your modelling...

Preventing Heat Loss Materials Required: Your house A windy day Pencil and paper As you have seen earlier, your house is insulated to keep the inside of your home, nice and warm. Along with the insulation material, the wood in your house also acts as a good insulator. Wood generally has thousands of cells, which act like a honey-comb. For instance, three quarters of your door’s heat loss occurs from the...

Stored Energy Materials required: Two 2-litre plastic bottles Books One Ruler Two boards (1 inch x 4 inch) Water An adult Potential energy is usually defined as the contained energy of an object to move it upto a height, as the gravitational pull will cause it to move downwards. Two objects of different weights will have different potential energy levels to move. For the experiment, stack several books on the floor,...