Floating Egg!

Materials: • An egg• Glass of water• Salt Procedure: Fill a glass with water and place the egg into it. Notice that it sinks. Add salt into the water and stir until it is dissolved. The egg is now floating!! Explanation: The egg will sink in water because its density is higher than the density…

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Remove a coin from water without getting wet

Materials: Candle Glass plate coin water Procedure: Place a coin on a plate and pour a little water. Light a candle and place it in the middle of the plate. Cover the candle with an inverted glass and watch the water sucked up in the glass!! Explanation: The oxygen in the glass is consumed in…

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Upside down Glass of water without spilling

The earth is surrounded by atmosphere. The atmosphere consists of a mixture of gases called atmospheric air. Atmospheric air exerts pressure (atmospheric) on each body inside it, which is due to the weight of the air. Materials: Glass of water Piece of Paper Procedure: Fill a glass with water and place a piece of paper…

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Build a simple Electric Generator

Generators are the devices that convert kinetic energy into electricity. The operation of the generators is based on the induction phenomenon, according to which, if a magnetic field moves close to a conductor an electric current will flow in the conductor. Materials: 2 rubber ringstest tubeLED lightpowerful magnetscopper wire Procedure: Place the magnet and the…

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Mixing Colors Experiment

Procedure: What color do you see when you throw at the same time on a white surface: Green and red light Green and blue light Blue and red light Green, blue and red light Explanation: White light consists of radiations corresponding to each color such as red, orange, yellow, green, blue, indigo and violet .…

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Moving Images experiment

Procedure: Draw on a piece of paper a cage and next to it a parrot. Stick the back of the rafts together and rest them on a straw. Spin the straw with your palms and watch the parrot in the cage!! Explanation: Our eyes maintain the impression of an image for 1/10 of a second.…

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Liquid Density Experiment

Materials: Olive oilAlcoholRed wineGlycerin Procedure: Pour the liquids inside a glass. Notice that the liquids with the highest density sink while the liquids with the lowest density float. Your layer density tower is ready!!

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Make a lemon battery

A battery is a device that stores chemical energy and converts it to electrical energy through chemical reactions. Materials: Four lemonsFour zinc nailsFour copper coinsFive crocodile wires and led Procedure: Place the coins and the nails on each of the four lemons as shown in the top images. Connect the nail on one lemon to the…

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Build a Simple Electromagnet

An electromagnet is the magnet in which the magnetic field is produced by an electric current. Electromagnet consists of a coil wrapped with a wire. The current through the wire turns the coil into a magnet. Materials: 30 cm copper wireA long nailBattery 4.5 VoltPaperclips Procedure: Wrap the wire several times around the nail. Scrape the…

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Build a simple electric motor

Electric motors are the devices that convert electrical energy into mechanical energy.  Materials: Battery 1.5Volt2 circular magnetsInsulated copper wire Procedure: Place the two magnets on the negative pole of the battery. Shape the wire as it is shown in the image and place it on the positive pole of the battery. The two ends of the…

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