Hey You! What If...
Comedy science series for children aged 6 and over made to blow your mind, one question at a time!
Seasons
1. You Fell Into a Black Hole?
Air Date: 2020-03-02
Experience the most extraordinary ride in the universe – falling into a black hole.
2. You Could Dig Through the Earth?
Air Date: 2020-03-03
The deepest hole humankind ever dug only got one thousandth of the way through the earth. But what would happen if you kept digging?
3. You Could Take a Lift to Space?
Air Date: 2020-03-04
What would happen if there really was a lift that took you all the way up to space?
4. You Could Turn into a Giant?
Air Date: 2020-03-05
Find out why turning into a huge giant would be no fairy tale.
5. You Could Go on Holiday to Mars?
Air Date: 2020-03-06
Experience the ultimate in long-distance travel - a holiday on Mars!
6. You Could Levitate?
Air Date: 2020-03-09
Good news - it’s possible to levitate! Bad news – there are some serious side effects.
7. Clouds Were Made Out of Cotton Wool?
Air Date: 2020-03-10
Clouds might look like cotton wool, but if they were, things would get very messy.
8. The Earth Stopped Spinning?
Air Date: 2020-03-11
Find out why stopping the Earth from spinning isn’t such a good idea.
9. The Moon Was Made of Cheese?
Air Date: 2020-03-12
Things don’t quite go to plan when the moon turns into cheese.
10. The Earth Was Flat?
Air Date: 2020-03-13
Find out why a flat Earth would feel very unflat indeed!
11. We Could Actually Stop Climate Change?
Air Date: 2020-03-16
The planet is being destroyed - but this episode demonstrates the things you can do to help save it.
12. You Can't Wait for Christmas?
Air Date: 2020-03-17
It really is possible to time travel into the future, and the team show you how!
13. You Could Shrink Yourself?
Air Date: 2020-03-18
If you have always wanted to shrink yourself, this is the episode for you!
14. You Could Live on the Moon?
Air Date: 2020-03-19
Some day people will live on the moon – find out just what they are in for.
15. Everything You Touched Turned to Gold?
Air Date: 2020-03-20
What if you could turn things to gold? This episode shows that it might not work out that well.
16. You Could Actually Reach for the Stars?
Air Date: 2020-03-23
Want to reach for the stars? It would be the journey of a lifetime - literally.
17. You Could Live in Slow Motion?
Air Date: 2020-03-24
Find out why living in slow motion would let you see things no-one else can!
18. The Earth Was Shaped Like a Doughnut?
Air Date: 2020-03-25
Would it be possible to live on an Earth shaped like a doughnut? You might be surprised!
19. You Could Run at the Speed of Sound?
Air Date: 2020-03-26
A fun run goes wrong when one ambitious runner tries running at the speed of sound.
20. You Try to Catch a Falling Star?
Air Date: 2020-03-27
What happens if you try to catch a falling star? Spoiler alert - probably best not to try!
21. You Woke Up as a Lizard Superhero?
Air Date: 2020-05-04
Why waking up with lizard powers would make you useless on earth but a superhero in space!
22. You Could Build a Gingerbread House?
Air Date: 2020-05-05
It’s the ultimate baking challenge: making a gingerbread house you could actually live in.
23. You Could Teleport?
Air Date: 2020-05-06
Is it really possible to teleport? Spoiler alert: it could end in disaster!
24. You Took All the Water Out of the Sea?
Air Date: 2020-05-07
Empty the oceans and you’d see hidden wonders, but you’d also cause the end of the world.
25. You Could Switch Off the Sun?
Air Date: 2020-05-08
See what would happen if you really could switch off the sun.
26. You Could Fly Like a Bird?
Air Date: 2020-05-11
Anyone can fly like a bird – you just have to travel across the solar system to do it!
1. You Built a Mega Slide?
Air Date: 2022-09-05
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.
2. You Walked Through Walls?
Air Date: 2022-09-06
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.
3. We Got Rid of Bugs?
Air Date: 2022-09-07
Bugs might be annoying, but we would soon regret it if we got rid of them - all our favourite foods would disappear, and there would be dung everywhere.
4. You Needed Two of You?
Air Date: 2022-09-08
From cloning to 3D printing, what if we could actually make copies of ourselves?
5. You Could Stop Global Warming?
Air Date: 2022-09-12
Imagine if we had a thermostat that could turn the world temperature down - could we fix global warming? But be careful, a few degrees too far and could cause an ice age.
6. You Lived on Venus?
Air Date: 2022-09-13
Venus has acid rain, crushing pressure and is hotter than an oven, so it might not sound like the ideal place to live. However, up in the clouds it's almost just like home.
7. You Could Shout Round the World?
Air Date: 2022-09-14
Find out how to shout from one side of the world to the other.
8. You Were Invisible?
Air Date: 2022-09-15
We try out three potential ways to become invisible and discover some surprising side effects.
9. We Had Two Suns?
Air Date: 2022-09-16
There is a way that Earth could have a second sun, so we try it out to see what happens.
10. Your Mind Could Move Things?
Air Date: 2022-09-19
We imagine a world where it's possible to move things with your mind like films, but find that the laws of physics mean that this superpower wouldn't quite work like you expect.
11. Animals Were Supersized?
Air Date: 2022-09-20
We look at whether some animals can get gigantic and find out that if you are being chased by a giant snail or a humungous butterfly, then fear not, you must be dreaming.
12. You Walked on the Ceiling?
Air Date: 2022-09-21
We try using a gravity-bending black hole and spinning the earth faster to see if we can make it possible to walk on the ceiling.
13. You Were the Last Person on Earth?
Air Date: 2022-09-22
What would the planet be like if all other humans disappeared, leaving you as the last person on earth?
14. You Built a Giant Sand Castle?
Air Date: 2022-09-23
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.
15. You Shrunk the Earth?
Air Date: 2022-09-26
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.
16. Money Grew on Trees?
Air Date: 2022-09-27
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.
17. You Flew Like a Superhero?
Air Date: 2022-09-28
Flying like a superhero may sound like enormous fun, but there are some serious downsides that Hollywood does not tell you about - weather, extreme cold and even fizzy blood.
18. There Were No Colours?
Air Date: 2022-09-29
Imagine removing all the colours one by one? It would change more than just how things look, and after taking out just three colours, we would not be able to see anything at all.
19. You Only Ate Burgers?
Air Date: 2022-09-30
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 we need.
20. You Threw a Ball Round the World?
Air Date: 2022-10-03
To throw a ball around the world, you need to start out in space, throw it ten times the speed of a bullet and make sure your ball does not explode when it hits the atmosphere.
21. You Built the Tallest Building on Earth?
Air Date: 2022-10-04
We reveal how to create the ultimate in tall buildings by going to the moon and taking inspiration from wedding cakes.
22. You Had Kangaroo Legs?
Air Date: 2022-10-05
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?
23. You Were Indestructible?
Air Date: 2022-10-06
We imagine becoming unbreakable by removing our bones, turning our skin to metal and finally by becoming completely elastic, but indestructibility isn't everything we hoped for.
24. You Surfed Without Water?
Air Date: 2022-10-07
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.
25. Earth Ran Out of Energy?
Air Date: 2022-10-10
We try out a crazy idea from science fiction to build a giant sphere around the sun and give us more energy than we'll ever need.
26. You Could Walk Up Walls?
Air Date: 2022-10-11
We take inspiration from the natural world as we imagine a new kind of superhero that can walk up walls.
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Rating
0.0/10
Release Date
2020-03-02
Episodes
52 (2 seasons)
Status
Returning Series
