Hello kids! Do you want to put a rainbow in a cup? Today we'll do a super fun experiment called making a rainbow cup! We'll use dish soap, water, oil, and alcohol with food coloring to create beautiful layers.
First step! We pour some dish soap into our glass cup. Then we add a few drops of food coloring to make it colorful. Use the stirring rod to mix it gently. Look, we already have our first colored layer!
Now for step two! We prepare colored water in another cup by mixing water with food coloring. Then we carefully pour this colored water down the stirring rod into our glass. Watch carefully - the water forms a separate layer above the soap!