1. Add a couple of teaspoons
of salt to one of your glasses and
add several drops of your food coloring
to the other glass.
2. Slowly pour in some warm tap
water to both of the glasses. Stir
the salt water until the salt dissolves
completely and stir the food coloring
into the other glass until the
food coloring mixes.
3. Slowly pour some of the food
coloring tap water into your
salted tap water glass.
4. Watch to see what happens
to the mixture.
5. & 6. Keep a watch
to see how the colored water rises
to the top of the salted water.
Did it separate?
The colored tap water
has move to the top of the salted
tap water because salt water is
heavier than the tap water.
(See the page on 'Water
Facts' for more information)