Materials Required:l Flavoured gelatin dessertl Small dishl Eyedropperl Waterl Fork Procedure: Pour a box of flavoured gelatin into a small dish. The powder should be at least 1 inch deep. Using an eyedropper, squeeze a drop of water onto the surface and let it soak in. Then continue squeezing single drops of water onto the […]
Materials Required:l Silver or silver-plated objectl Silver polishl Clothl Rubber bandl WaterProcedure: Ask an adult in your family if you may borrow a silver or silver-plated object, such as a spoon. The experiment will not harm the piece. Polish the object with an old cloth and some silver polish. Wrap a rubber band tightly around
Materials Required:l Glassl Waterl 2 tablespoons saltl Spoonl Cotton string, 6 inches longl Washer or nutl Metal kitchen tongsl MatchesThe help of one of your parents Procedure: Fill a drinking glass about halfway with water, and add 2 tablespoons of salt. Stir with the spoon. Soak the cotton string in the salt solution for at
Materials Required:l Needlel Magnetl Scissorsl Index cardl Jarl Threadl Pencil Procedure: Magnetize a needle by stroking it several times with a magnet. Cut a small strip from an index card so that the strip will fit inside the jar. Push the needle into the card. Tie one end of a piece of thread to the
Materials Required:l Playing cardl Drinking glassl Coin Procedure: Set a playing card on top of a drinking glass, and place a coin in the center of the card. Form a tight circle with your thumb and index finger. Then quickly flick your finger outward, hitting the edge of the card. The card will shoot away
Materials Required:l 2 straight pinsl One Rupee coin Procedure: Place the points of 2 pins at directly opposite edges of a one Rupee coin. Keep the pins steady and straight, and gently lift. You may need to try several times before you can pick up the coin without it slipping. If someone is nearby, perhaps
Materials Required:l Heavy cordl Rock, weighing several kilograms but easy for you to liftl 2 pieces of light stringl Tree Procedure: Tie a piece of heavy cord around the middle of the rock. Tie a piece of light string to the cord (the string should be just strong enough to support the rock’s weight), and
Materials Required:l Scissorsl Spongel Mayonnaise jar with lidl Gluel Tin snipsl Carbon paperl Rubbing alcoholl Dry icel Slide projectorThe help of one of your parents Procedure: Cut a piece of sponge so that if fits into the bottom of a mayonnaise jar. Glue the sponge in place. Ask one of your parents to cut out
Materials Required:l Round balloonl Wide-tip felt marker Procedure: Inflate a round balloon partially full with air. Pinch the neck closed with your thumb and forefinger, but do not tie it closed. With a wide-tip felt marker, make several specks all over the surface of the rubber. Let them dry. Now blow more air into the
Materials Required:l String, about 40 inches longl Tapel Flashlightl A dark room Procedure: Tape one end of the string to a flashlight. Go into the room you have chosen and close the door. Tape the other end of the string to the center of the door at waist height, then turn off the light. (The
Materials Required:l A sunny dayl Compassl PencilProcedure: On a sunny day, take a compass and pencil outdoors. Allow the compass needle to come to rest, then place the pencil’s eraser at the ‘S’. Tilt the pencil at a 45° angle in line with the needle. Imagine the compass face as the dial of a clock.
Materials Required:l An old nylon stockingl Plastic sandwich bag Procedure: With one hand, hold the toe of a nylon stocking (the shiny kind works best) on the edge of a table. Slip your other hand into the plastic sandwich bag and grip the stocking, starting at the toe and pulling along entire length, up to
Materials Required:l Blackboardl Piece of chalkl Glass windowl An old cloth Procedure:You have probably seen your teacher write with chalk many times, but have you ever thought about the chalk itself? Do you know what makes chalk stick to a surface? For the answer, try this experiment. If you are at school or have a
Materials Required:l Wool sockl Plastic combl Tapel Lightweight thread, about 1 foot long Procedure: Rub a wool sock rapidly back and forth over a plastic comb. Tape the end of the piece of thread to the top of a table. Touch the comb to the free end of the thread and raise the comb. The
Materials Required:l Copper naill Zinc naill Steel wooll LemonProcedure: Scrub a copper nail and a zinc nail with a piece of steel wool until they are clean and shiny. Rinse the nails under the faucet. Now poke the pointed ends of the nails into the center of a fresh lemon. Space the nails about 1