Have you ever wondered how colors can magically transform into things like a starry sky or a rainbow through simple experiments? It's truly fascinating!

Here are some of the most beautiful color experiments that you can easily do at home:

1. Traffic Light Chemistry:

Experiment Principle: In this experiment, there is a solution inside a conical flask containing three components: sodium hydroxide, D-glucose, and indigo carmine.

Indigo carmine is a type of redox indicator, which means it can change colors based on different oxidation-reduction states and pH levels. When you shake the flask, it increases the contact between the solution and the air. This causes the indigo carmine to oxidize due to the oxygen in the air, and when left undisturbed, it gets reduced by glucose. This cycle creates a mesmerizing color-changing effect.

2. Sugar Starry Sky:

Experiment Principle: Sugar cubes dissolve well in hot water, but as the temperature decreases over time, the solubility decreases, leaving some undissolved sugar at the bottom of the cup.

The sugar water at the bottom has a higher concentration than the upper part, resulting in different densities, which leads to a layered effect.

When you add food coloring to the cup, it floats on top of the sugar water, creating a gradient effect resembling a starry sky.

3. Rainbow in the Bottle:

Experiment Principle: In this experiment, we prepare three cups of saltwater with different densities. The saltwater in cup 1 is supersaturated, making it the densest, and settles at the bottom. Cup 2 contains unsaturated salt water with a density between cup 1 and cup 3, while cup 3 contains plain water with the lowest density, staying on top.

4. Color-Changing Purple Sweet Potato Porridge:

Experiment Principle: Purple sweet potatoes contain a rich pigment called anthocyanin, which changes color with changes in acidity. Lemon juice, with its citric acid, lowers the pH of the porridge, making it acidic, and causing the purple sweet potato porridge to turn red.

5. Mixing Primary Colors:

Experiment Principle: The primary colors in paint are red, yellow, and blue. These are colors that cannot be created by mixing other colors. All other colors can be achieved by mixing these three in different proportions.

For example, equal parts of red and yellow make orange, while equal parts of blue and yellow make green. When you mix all three primary colors in equal proportions, you get black.

6. Lemon and Iodine:

Experiment Principle: Lemon juice is rich in vitamin C, which has strong reducing properties. It can reduce iodine from iodine tincture to hydrogen iodide. Hydrogen iodide is colorless in solution, causing the iodine tincture to fade when it encounters lemon juice.

These experiments are not only educational but also a lot of fun. You can easily try them at home with simple materials to create your very own colorful magic. Enjoy experimenting!