Catch up TV

This episode is currently not available.

Series 2: 15. You Shrunk the Earth



We find out what would happen if you shrank the earth. You could jump higher and move faster, but you would end up with altitude sickness even at sea level.

Source: CBBC

Most recent episodes of Hey You What If?

Hey You What If?

Hey You What If? - Series 1: 12. You Can't Wait For Christmas?

Series 1: 12. You Can't Wait For Christmas?

It really is possible to time travel into the future, and the team show you how!

23-12-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 2: 2. You Walked Through Walls

Series 2: 2. You Walked Through Walls

Wouldn't it be cool to be able to walk through walls? From turning into a gas to quantum trickery, we discover why it wouldn't be quite as useful as you'd like.

20-12-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 1: 4. You Could Turn Into A Giant?

Series 1: 4. You Could Turn Into A Giant?

Find out why turning into a huge giant would be no fairy tale.

20-12-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 1: 3. You Could Take A Lift To Space?

Series 1: 3. You Could Take A Lift To Space?

What would happen if there really was a lift that took you all the way up to space?

19-12-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 1: 2. You Could Dig Through The Earth?

Series 1: 2. You Could Dig Through The Earth?

The deepest hole humankind ever dug only got one thousandth of the way through the earth. But what would happen if you kept digging?

18-12-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 1: 1. You Fell Into A Black Hole?

Series 1: 1. You Fell Into A Black Hole?

Experience the most extraordinary ride in the universe – falling into a black hole.

17-12-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 2: 1. You Built A Mega Slide

Series 2: 1. You Built A Mega Slide

Could you build a slide to the other side of the world? You would need to start in space, use the slippiest slide ever and make sure you have enough supplies before you go down it!

16-12-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 1: 24. You Took All The Water Out Of The Sea?

Series 1: 24. You Took All The Water Out Of The Sea?

Empty the oceans and you’d see hidden wonders, but you’d also cause the end of the world.

05-11-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 1: 23. You Could Teleport?

Series 1: 23. You Could Teleport?

Is it really possible to teleport? Spoiler alert: it could end in disaster!

29-10-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 2: 21. You Built The Tallest Building On Earth

Series 2: 21. You Built The Tallest Building On Earth

So you want to build the tallest building on Earth? Ambitious but good on yer! This episode will tell you how, starting with how not to. \n\nMost tall buildings are tall and th ...

25-10-2024

CBBC

All episodes

CBBC

Most popular episodes of Hey You What If?

Hey You What If?

Hey You What If? - Series 2: 16. Money Grew On Trees

Series 2: 16. Money Grew On Trees

If you had a tree that could grow money, would that make you rich? Even if you wait 20 years for your tree to grow, you will probably end up no richer than you started.

04-09-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 2: 15. You Shrunk The Earth

Series 2: 15. You Shrunk The Earth

We find out what would happen if you shrank the earth. You could jump higher and move faster, but you would end up with altitude sickness even at sea level.

02-09-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 1: 11. We Could Actually Stop Climate Change?

Series 1: 11. We Could Actually Stop Climate Change?

The planet is being destroyed - but this episode demonstrates the things you can do to help save it.

24-10-2023

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 2: 14. You Built A Giant Sandcastle

Series 2: 14. You Built A Giant Sandcastle

Is it possible to build a sand castle the size of a real castle? We imagine how it could be done, using a pneumatic drill and a huge, solid gold steamroller!

30-08-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 2: 1. You Built A Mega Slide

Series 2: 1. You Built A Mega Slide

Could you build a slide to the other side of the world? You would need to start in space, use the slippiest slide ever and make sure you have enough supplies before you go down it!

16-12-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 1: 9. The Moon Was Made Of Cheese?

Series 1: 9. The Moon Was Made Of Cheese?

Things don’t quite go to plan when the moon turns into cheese.

21-12-2023

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 1: 6. You Could Levitate?

Series 1: 6. You Could Levitate?

Good news - it’s possible to levitate! Bad news – there are some serious side effects.

18-12-2023

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 2: 19. You Only Ate Burgers

Series 2: 19. You Only Ate Burgers

If everyone in the world ate nothing but cheeseburgers, we would run out of land, and even if we went meat-free, we would have to invent some crazy burgers to get the nutrients ...

11-10-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 2: 13. You Were The Last Person On Earth

Series 2: 13. You Were The Last Person On Earth

What would the planet be like if all other humans disappeared, leaving you as the last person on earth?

06-10-2024

CBBC

All episodes

CBBC

Hey You What If?

Hey You What If? - Series 1: 17. You Could Live In Slow Motion?

Series 1: 17. You Could Live In Slow Motion?

Find out why living in slow motion would let you see things no-one else can!

01-11-2023

CBBC

All episodes

CBBC

© 2024 - Catchupplayer.co.uk