Turns out science can also be super colorful! 😍 Learn all about density and try out this experiment for yourself below 👇 🌈What you need: Salt Water Food coloring Measuring cup Teaspoon 5 plastic cups 1 tall glass (we used a graduated cylinder) Pipette 🌈How to build a rainbow in a glass: Start with ½ cup of five different colors of water: red, orange, yellow, green, and blue. Add ½ tsp of salt to the orange, 1 tsp of salt to the yellow, 1 ½ tsp salt to the green, and 2 tsp salt to the blue. Make sure to add no salt to the red. Add the blue water to your container. We used a graduated cylinder and added 5 mL of each color. Using a pipette, gradually add the green water, then yellow, orange, and red. 🌈What’s going on? Salt makes water more dense, and it will stay at the bottom of the container because the less dense (because it’s less salty) water wants to float on top. By adding the most salt to the blue water and adding less in reverse rainbow order, we’ve made the colors stack ...