These bodies of water can all contain fish, but they are different in some ways. Today you will learn some characteristics of lakes, ponds, rivers, streams, and oceans. We learned earlier that the world is mostly water. There are other bodies of water on the earth also. Much of the water that falls on land runs down hill.
Streams often begin in the mountains, and flow through valleys.
Water from melting snow and rain trickle together. Streams may be dry in the drought season and overflow in the rainy season. When many small streams come together, a river forms. A river is moving water that generally moves toward the ocean. Streams and rivers are known as pathways because they flow.