Liquid Rainbow: Density experiment
Adult Supervision Required
- Light Corn syrup (clear)
- Dish washing liquid detergent (preferably blue or green)
- Oil (Olive oil or vegetable oil)
- Empty Clear Jar or Empty large clear bottle (labels removed)
- Food Coloring in assorted colors (Red, Green, Blue)
- measuring cup for liquids
- 5 plastic cups
- First take a marker and label each cup with what is going to go inside of it. Honey. Corn Syrup. Dish Washing Liquid. Water. Oil.
- Take your measuring cup and measure out 1/2 a cup of honey. Then pour honey into a plastic cup.Wash measuring cup
- Take your measuring cup and measure out 1/2 a cup of corn syrup. Then pour into a plastic up. Put 3 drops of food coloring into corn syrup. (Use blue food coloring if dish washing detergent is green. Use green food coloring if dish washing detergent is blue.) Stir food coloring until all the corn syrup is colored. Wash measuring cup
- Take your measuring cup and measure out 1/2 a cup of dish washing liquid detergent. Then pour dish washing detergent into a plastic cup.Wash measuring cup
- Take your measuring cup and measure out 1/2 a cup of water. Then pour water into a plastic cup. Put 3 drops of red food coloring into water and stir until all the water is colored.Wash measuring cup
- Take your measuring cup and measure out 1/2 a cup of oil. Then pour oil into a plastic cup. Wash measuring cup
- Now you have 5 plastic cups with various colors. Take the honey and pour it into the bottom of the empty jar or bottle. Use the spoon if honey gives you any difficulty with pouring.
- Take the corn syrup (now either colored green or blue) and pour it over the honey.
- Next take the dish washing liquid detergent and slowly pour it over the corn syrup.
10. Then take the red water and slowly pour it over the dish washing liquid.
- Lastly take the oil and slowly pour it over the water.
Close the jar or bottle and now you have a liquid rainbow.
Scientific Explanation: Density of an object is its mass per unit volume. Each of these liquids sits on top of each other and does not mix, because they all have different densities. (Some are heavier or lighter than others.)