There is a riddle that says: “What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?” In this lesson, you’ll find out the answer, and learn more about it too!
Related topics and things you might want to know already:
Work of Water:
What you’ll learn:
- The parts of a river.
Pre-lesson discussion question:
- This lesson is fun to start with just the riddle from above: What can run but never walk, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Course Content
Video Lessons
Experiments and Activities
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