3.4. The water cycle
The journey of water from the land to the sky and back again: Let's read this text about the water cycle. Try to remember the steps.
3.8. Gaming.
Now, you are going to compete showing your knowledge on the Earth's relief and the distribution of water in our planet! Are you ready?...
3.7. Be blue, my friend!
One in six people on our planet has not direct access to drinking water. Drinking water is more expensive in disadvantaged areas of the...