Tall clear glass
club soda can't be flat
First pour the club soda in the glass
Next drop in some raisins
Wait at least 20 to 30 seconds and watch what happens to the raisins
*The reason why the raisin floats to the top is because the bubbles stick to the sides of the raisin and make the raisin more buoyant. The bubbles make the raisin float the way a life jacket makes a person float.