Portman, Michael

Discusses flooding, covering the water cycle, types of floods, flood safety, and more.

Explores Pluto, how it was accidentally discovered, facts about it, and the decision that removed it as a planet in our solar system.

Examines the planet Mars and the possibility that it had once supported life, and shows how scientists have been studying the planet.

Describes pandas, explains how human actions have put pandas at risk, and discusses the work of conservation groups.

Discusses hurricanes, covering how they are formed, how they are named, parts of a hurricane, historic hurricanes, and more.

Discusses tsunamis, covering types of waves, earthquakes and other causes, historic tsunamis, and more.