Hey You What If?

1 series

Available on CBBC HD

An attempt to answer some of the world's impossible questions by delving into the idea of parallel worlds.

Episode 1You Built a Mega Slide

What would it take to build a slide so big that it went to the other side of the world? [S] [HD]

Episode 21You Built the Tallest Building on Earth

We reveal how to create the ultimate in tall buildings by going to the moon and taking inspiration from wedding cakes. [S] [HD]

Episode 22You Had Kangaroo Legs

To win a marathon, are you better off with the bouncing legs of a kangaroo, the long legs of a T rex or sticking with the legs of a human? [S] [HD]

Episode 23You Were Indestructible

We try three ways of becoming indestructible and end up destroying the house. [S] [HD]

Episode 24You Surfed without Water

Sometimes you want to go surfing, but it's too far to the beach, so we try surfing on land with the help of a volcano and some giant fans. [S] [HD]

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