We Made That shares a simple water density experiment that ends with this fun rainbow of colors in a glass. The colors stay separated for several days. Sugar, water, food coloring is all you need.
Six simple science experiments you need to show your kids - Fabweb
Experimento para niños con pintura bicarbonato Más
Experimentos caseros para niños
Agua que no cae
Science & Art for Kids: Marbled Milk Paper - Babble Dabble Do
Fun (& inexpensive) little experiment for kids: Tornado in a Jar!
8 science experiments that you can do with your kids Wiloo