121 Science Experiments

Materials Required:l Brown paper bagl Scissorsl Windowl Peanut Procedure: Cut open a brown paper bag, such as a shopping bag. Lay the flat piece against a window. Rub a peanut, without its shell, firmly on the bag. Move the nut back and forth several times over the same area. Soon you will see light coming […]

Materials Required:l Fresh eggl Bowll Hot tap water Procedure: Place the fresh egg in the bowl, then fill the bowl with hot tap water. Set the bowl on a table or counter top and watch closely as the experiment sits quietly for several moments. You will see a tiny stream of bubbles rising from the

Materials Required:l Cucumberl Vegetable parerl 2 bowlsl Waterl 1 tablespoon salt Procedure: Using a vegetable parer and moving it away from your fingers, peel the skin from a fresh cucumber. When the skin has been removed, continue to use the parer to slice the cucumber into strips. Divide the strips into 2 bowls, then add

Materials Required:l 5 tablespoons pure laundry soap or detergentl 2 cups warm tap waterl 4 tablespoons saltl Large glass Procedure: Place the laundry soap into 1 cup of water. Stir until the soap is dissolved. Next, place the salt into another cup of water and stir until the salt is dissolved as much as possible.

Materials Required:l Candlel Aluminium pie platel Matchesl 1 teaspoon baking sodal Glass (not plastic) measuring cup, marked formillilitersl VinegarThe help of one of your parents Procedure: Set a candle on an aluminium pie plate in the sink. Then ask one of your parents to light the wick. While the candle is burning, place the teaspoon

Materials Required:l ¼ cup waterl ¼ cup laundry bluingl ¼ cup saltl 1 tablespoon ammonial Jarl Spoonl Charcoal briquettesl Bowll Food colouring in various coloursl Old pie tin Procedure: Place the water, laundry blue, salt, and ammonia in a jar, and stir thoroughly with a spoon. Set a single layer of charcoal briquettes in a

Materials Required:l Red and blue food colouringl ½ cup waterl Bowll 1 heaping cup cornstarchl 2 marbles Procedure: Add a drop of red and a drop of blue food colouring to ½ cup of water. Pour this into a bowl. Add the cornstarch and mix well. Pick up a handful of this goo and roll

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