Imagine holding a rainbow in your hands! 🌈 With just sugar, water, and food coloring, you can create a beautiful layered rainbow in a glass. This experiment is simple, colorful, and teaches you about density in liquids.
What You’ll Need
- 4 clear glasses or cups
- Water
- Sugar
- Food coloring (red, yellow, green, blue)
- Spoon
- A tall clear glass
Step-by-Step Instructions
1. Prepare Colored Solutions
Fill each of the 4 glasses with the same amount of water. Add different food coloring to each glass.
2. Add Sugar in Layers
- In the first glass (red), add 3 tablespoons of sugar.
- In the second glass (yellow), add 2 tablespoons of sugar.
- In the third glass (green), add 1 tablespoon of sugar.
- In the fourth glass (blue), add no sugar.
Stir well until the sugar dissolves completely.
3. Layer the Colors
Take a tall clear glass. Start by carefully pouring the red solution first, then slowly add the yellow, then green, and finally the blue.
👉 Tip: Pour gently over the back of a spoon to avoid mixing.
4. Watch the Rainbow Form
If done carefully, you’ll see all four colors sitting on top of each other like a rainbow. 🌈
Why Does It Work?
- Density means how heavy a liquid is compared to its volume.
- The more sugar in the water, the denser it becomes.
- By layering from densest (red) to least dense (blue), the liquids stack instead of mixing.
Fun Variations
- Try more colors by adding different sugar levels.
- Use honey, dish soap, or oil for extra density layers.
- Shine a flashlight through the glass for a glowing rainbow effect.
Safety Note ⚠️
This experiment is completely safe, but not meant for drinking due to high sugar content.
Conclusion
The rainbow in a glass is not only a fun DIY project but also a cool way to explore density and liquid science. It’s perfect for kids, students, or anyone who loves colorful science experiments.
Try it today and make your own rainbow indoors! 🌈✨
