Join with Hydro, the wise, whimsical and well-known water molecule, as he crisscrosses the skies, slides down our mountains and then evaporates into a cloudy mist.

Discover:

How the earth's water cycle works
Who is affected by the earth's water cycle
The challenges that confront the earth's water cycle

• Children & Teens > Children’s & young adult general non-fiction > Nature, the natural world (children’s/ya) > Dinosaurs & prehistoric world (children’s/ya)
• Children & Teens > Educational material > Educational: sciences, general science