Cup 2 still represents all the world's fresh water, but the ratio of water has changed. Add some blue food coloring to Cup 2 to help you remember that it represents fresh water. One of the cups represents fresh water that people can't use. One cup represents fresh water people can use. When your groups finds out which cup is which, write down your response.
People can use the water in lakes and rivers.
There's also water underground called groundwater. As a group, write down your answer. As a group, write down your answer. Choose someone from your group to tell the class your group's thoughts during this activity. In North America, people use more of it per person than anywhere else in the world.