Remastered
50 episodes
How Do We Know the Continents Move?
How Deep Is the Deepest Hole Ever Dug?
How Can Solid Ground Turn to Liquid?
Why Is the Sea Floor Striped Like a Barcode?
Why Do Snowflakes Have Six Sides?
Which Mountain Top Is Furthest from Earth’s Centre?
Where Does a Hurricane Get Its Energy?
How Do We Know What the Air Was Like a Million Years Ago?
Why Do Some Volcanoes Explode While Others Ooze?
