Find out if freshwater can float on saltwater.
You will need: two glasses of the same size, water, water colors blue and red food colors, salt, teaspoons.
That’s how it’s done:
- Fill two glasses with water.
- Add a little blue color to one glass and a little red to the other glass.
- Sprinkle 2 to 3 tablespoons of salt in the blue glass.
- Take a teaspoon and slowly add small drops of red water to the blue water.
- What happens and why?