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 into both of the glasses (leave each glass less than half full. Stir
and mix the salt water until the salt dissolves
completely. Stir and mix the food coloring
into the glass of food coloring until the
food coloring mixes well.
3. Slowly pour some of the food
coloring tap water into the
salt tap water glass.
4. Watch to see what happens
to the mixture.
5. 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 moved 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)