Rainbow in a Jar Experiment For Young Children

Supplies:

• A tall clear jar
• Blue dish soap
• Honey
• Vegetable oil
• Water
• Red, green, and purple food coloring
• Rubbing alcohol 
• A spoon to help you pour the liquids

Instructions:

1. Mix the purple food coloring with the honey. Slowly pour the honey into the bottom of the jar.

2. Add blue dish soap on top of the honey in the jar. It will float on top of the honey because dish soap is less dense.

3. Mix green food coloring with the water. You then add the water on top of the dish soap.

4. Pour olive oil on top of the water.

5. This following step should be done by an adult. Mix red food coloring with the rubbing alcohol. Add the layer of rubbing alcohol to complete your rainbow.

This is a great experiment to show kids how density works and how the layers can be made by having the most dense at the bottom and the least at the top.