121 Science Experiments

Materials Required:l Glass soda bottlel Waterl Small candle (like the kind put on birthday cakes)l 2 or 3 straight pinsl MatchesThe help of one of your parents Procedure: Fill the soda bottle to the top with water. Poke two straight pins into the bottom of a birthday candle and suspend the candle in the water. […]

Materials Required:l Small glass, such as a juice glassl Vegetable oill Ice cube Procedure: Full a small glass with vegetable oil. Place an ice cube in the glass, and you will see that the ice floats near the top. Observe your experiment for several minutes. As the ice melts, water droplets sink to the bottom.

Materials Required:l Stringl Waterl Cream pitcher, with a handle and spoutl Drinking glass Procedure: Cut a piece of string about 1 foot long and soak it in water for a few minutes. Tie one end of the string to the handle of the cream pitcher, then fill the pitcher with water. Run the piece of

Materials Required:l Narrow drinking glassl Waterl CorkWatering can (like the kind used for house plants) Procedure: Full a narrow drinking glass with water to about 1/3 of an inch from the lip of the glass. Set a cork on the water surface and note that it drifts to the side. No matter how carefully you

Materials Required:l Water faucetl Spatulal Spoonl Small glass Procedure: Turn on the kitchen faucet and adjust the water to produce a smooth, continuous stream. Insert the flat portion of a spatula into the water’s path. Hold the spatula horizontally and direct the water stream forward and downward until you produce a sheet of water. You

Materials Required:l Stove or hot platel Frying panl Small glassl WaterThe help of one of your parents Procedure: Ask one of your parents to turn a stove burner or hot plate on high heat and to set a frying pan on the burner. Fill a small glass, such as a juice glass, with water and

Materials Required:l Light-coloured bowll Waterl Paprikal Dishwashing liquid Procedure: Fill a light-coloured bowl with water and shake some paprika evenly over the top of the water. Put a drop of dishwashing liquid on your finger, then dip your finger into the center of the bowl. The red paprika quickly scoots to the sides of the

Materials Required:l Newspapersl Half liter canl Waterl Enamel paint in several coloursl Small jam jars Procedure:This is a good project to do outdoors on a picnic table. Spread some newspapers on the table on which you are working. Fill a can about ¾ full with water, then dribble different-coloured enamel paints into the can. You

Materials Required:l Glass jar with lidl Waterl 1 tablespoon salt Procedure: Fill a clear glass jar—such as a mayonnaise jar—with tap water. Set the jar in front of a bright window and watch the water at the top. Air bubbles will rise to the surface. After the bubbling has stopped and the water becomes clear,

Materials Required:l 2.5 liter plastic jugl Scissorsl Naill Hammerl Pebbles, gravel, and sand (coarse and fine)l Glass jarl Muddy waterThe help of one of your parents Procedure: Cut off the bottom of a 2.5 liter plastic jug. Then, unscrew the cap and ask one of your parents to punch a few small holes in it

Materials Required:l Matchesl Newspaperl Tall drinking glassl Paill WaterThe help of one of your parents Procedure:Can you dunk some matches in water and still be able to use them? Wrap a few matches in a small scrap of newspaper. Crumple the newspaper and poke it to the bottom of a tall drinking glass. The paper

Materials Required:l Aluminium pie platel Pencill Gluel Empty spooll Small block of woodl Hot plate Procedure: Cut out a spiral shape from the flat base of an aluminium pie plate. Use the blunt point of a pencil to make a dent in the exact center, but do not poke it all the way through the

Materials Required:l Stringl 2 sheets of paperl Chair Procedure:This experiment takes only a few seconds to perform, but you may want to repeat it a few times and think about the scientific principle before reading the explanation given below. Use two sheets of paper that are exactly alike. Crumple one piece of paper into a

Materiial Required l Corkl Glass soda bottlel Petroleum jellyl Waterl Procedure: Find a cork that will fit a glass soda bottle. Rub petroleum jelly around the sides of the cork. Fill the bottle with water, about 1 inch from the top. Set the cork in the mouth of the bottle, but do not press it

Materials Required:l Cardboardl Pencill Scissorsl BookProcedure: Draw a V-shaped pattern like the one shown in the illustration on a piece of smooth, stiff cardboard. Cut it out, making sure the corners are rounded. Hold a book in your left hand, with the binding pointing upward at an angle. Place the cardboard shape on the book