Speed of a river game
- Ask a group of students to form a line, which represents a river.
- Give them a ball. The students have to pass the ball to each other. The children at the start of the line represent the upper part of the river, where the water is fast, while the children at the other end of the line represent the lowest part of the river. With the movement of the ball passing from each other, the students have to demonstrate the movement (speed) of the river.
- Discuss with students:
- Which part of a river is the fastest? (The upper part with a steep slope or a narrow gorge.)
- What kind of water can dissolve more oxygen? (Fast-flowing water, cold water.)
- What other characteristics are affected by the speed of the water current? (Erosion, water turbidity, morphology of a riverbed, types of plants and animals living in streams, )
