S01E07: Clouds Were Made Out of Cotton Wool? | Hey You, What If?

Duration: 5'00''

Synopsis

Clouds might look like cotton wool, but if they really were, things would get very messy.

Further Information

More clips from Hey You, What If?

S01E01: You Fell Into a Black Hole? | Hey You, What If?

S01E01: You Fell Into a Black Hole? | Hey You, What If?

CBBC | 2020 | 5'01''

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

S01E02: You Could Dig Through the Earth? | Hey You, What If?

S01E02: You Could Dig Through the Earth? | Hey You, What If?

CBBC | 2020 | 5'00''

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

S01E03: You Could Take a Lift to Space? | Hey You, What If?

S01E03: You Could Take a Lift to Space? | Hey You, What If?

CBBC | 2020 | 5'00''

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

S01E04: You Could Turn Into a Giant? | Hey You, What If?

S01E04: You Could Turn Into a Giant? | Hey You, What If?

CBBC | 2020 | 5'01''

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

S01E05: You Could Go on Holiday to Mars? | Hey You, What If?

S01E05: You Could Go on Holiday to Mars? | Hey You, What If?

CBBC | 2020 | 5'00''

Experience the ultimate in long-distance travel - a holiday on Mars!

S01E06: You Could Levitate? | Hey You, What If?

S01E06: You Could Levitate? | Hey You, What If?

CBBC | 2020 | 5'00''

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

S01E08: The Earth Stopped Spinning? | Hey You, What If?

S01E08: The Earth Stopped Spinning? | Hey You, What If?

CBBC | 2020 | 5'00''

Find out why stopping the earth from spinning isn't such a good idea.

S01E09: The Moon Was Made of Cheese? | Hey You, What If?

S01E09: The Moon Was Made of Cheese? | Hey You, What If?

CBBC | 2020 | 5'00''

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

S01E10: The Earth Was Flat? | Hey You, What If?

S01E10: The Earth Was Flat? | Hey You, What If?

CBBC | 2020 | 4'59''

Find out why a flat Earth would feel very unflat indeed!

S01E11: We Could Actually Stop Climate Change? | Hey You, What If?

S01E11: We Could Actually Stop Climate Change? | Hey You, What If?

CBBC | 2020 | 4'59''

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

S01E12: You Can't Wait for Christmas? | Hey You, What If?

S01E12: You Can't Wait for Christmas? | Hey You, What If?

CBBC | 2020 | 5'00''

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

S01E13: You Could Shrink Yourself? | Hey You, What If?

S01E13: You Could Shrink Yourself? | Hey You, What If?

CBBC | 2020 | 5'00''

If you have always wanted to shrink yourself, this is the episode for you!

S01E14: You Could Live on the Moon? | Hey You, What If?

S01E14: You Could Live on the Moon? | Hey You, What If?

CBBC | 2020 | 4'59''

Some day people will live on the moon - find out just what they are in for.

S01E15: Everything You Touched Turned to Gold? | Hey You, What If?

S01E15: Everything You Touched Turned to Gold? | Hey You, What If?

CBBC | 2020 | 5'00''

What if you could turn things to gold? This episode shows that it might not work out that well.

S01E16: You Could Actually Reach for the Stars? | Hey You, What If?

S01E16: You Could Actually Reach for the Stars? | Hey You, What If?

CBBC | 2020 | 4'59''

Want to reach for the stars? It would be the journey of a lifetime - literally.

S01E17: You Could Live in Slow Motion? | Hey You, What If?

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CBBC | 2020 | 4'59''

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

S01E18: The Earth Was Shaped Like a Doughnut? | Hey You, What If?

S01E18: The Earth Was Shaped Like a Doughnut? | Hey You, What If?

CBBC | 2020 | 5'00''

Would it be possible to live on an Earth shaped like a doughnut? You might be surprised!

S01E19: You Could Run at the Speed of Sound? | Hey You, What If?

S01E19: You Could Run at the Speed of Sound? | Hey You, What If?

CBBC | 2020 | 4'59''

A fun run goes wrong when one ambitious runner tries running at the speed of sound.

S01E20: You Try to Catch a Falling Star? | Hey You, What If?

S01E20: You Try to Catch a Falling Star? | Hey You, What If?

CBBC | 2020 | 5'00''

What happens if you try to catch a falling star? Spoiler alert - probably best not to try!

S01E21: You Woke Up as a Lizard Superhero? | Hey You, What If?

S01E21: You Woke Up as a Lizard Superhero? | Hey You, What If?

CBBC | 2020 | 4'59''

Why waking up with lizard powers would make you useless on earth but a superhero in space!

More resources about Primary Science

S01E01: Stars | Nina and the Neurons

S01E01: Stars | Nina and the Neurons

CBeebies | 2007 | 14'19''

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S01E13: Wakey Wakey | Nina and the Neurons

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CBeebies | 2007 | 14'18''

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S01E25: Colours | Nina and the Neurons

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CBeebies | 2007 | 14'12''

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Whats the smartest animal? | The Ministry of Curious Stuff

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A grey parrot was able to recite the correct address where its owner lived.

S01E16: Birthday Surprise | Nina and the Neurons

S01E16: Birthday Surprise | Nina and the Neurons

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13: Earth and Space Special | Horrible Science

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CBBC | 2025 | 25'06''

Rapping science teacher Matt Green becomes the first human being ever to visit Quark when he joins Pipette on her home planet ...

S01E22: Too Much Salt | Nina and the Neurons

S01E22: Too Much Salt | Nina and the Neurons

CBeebies | 2007 | 14'02''

John from Paisley can't believe how much salt his Uncle Bobby puts in his soup.

04: Manky Materials and Shifty States Special | Horrible Science

04: Manky Materials and Shifty States Special | Horrible Science

CBBC | 2025 | 25'50''

Guy Mowbray narrates Elemental Gladiators, Judge Rinder has a science beef, and someone tries to steal the e...

08: A Meteor for the Dinosaurs, Binary Bangers and Perilous Plants | Horrible Science

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Fred Sirieix stars in Scientific First Dates, Marie Curie reacts to space, and the dino...

09: Space Vomit, Pet Mushrooms and Death by Chicken | Horrible Science

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S01E02: Do We All Smell Different? | Nina and the Neurons

S01E02: Do We All Smell Different? | Nina and the Neurons

CBeebies | 2007 | 14'32''

Roddy wants to know if we all smell different.

S01E04: Deep Ocean | Brain Freeze

S01E04: Deep Ocean | Brain Freeze

CBBC | 2014 | 4'30''

Knowles and McCork ask, what is the deepest part of the ocean?

S01E06: Eyebrows | Nina and the Neurons

S01E06: Eyebrows | Nina and the Neurons

CBeebies | 2007 | 14'20''

Nina helps Sam from Morecambe find out what eyebrows are for, and what eyebrows can tell us about what people are feeling.

S01E07: What's Cooking? | Nina and the Neurons

S01E07: What's Cooking? | Nina and the Neurons

CBeebies | 2007 | 14'17''

Nicole wants to know why we cook food. A visit to the sensory garden to gather herbs leads to her and Nina trying to make a pi...

S01E12: Where's The Bad Smell? | Nina and the Neurons

S01E12: Where's The Bad Smell? | Nina and the Neurons

CBeebies | 2007 | 14'14''

Nina visits a family whose home is plagued with a horrible stink. She finds out how we smell things and sniffs out the ...

S01E14: Why Is My Tongue Wet? | Nina and the Neurons

S01E14: Why Is My Tongue Wet? | Nina and the Neurons

CBeebies | 2007 | 14'18''

Corin asks Nina why tongues are wet, and with a few experiments they discover the reason.

S01E15: Shadows | Nina and the Neurons

S01E15: Shadows | Nina and the Neurons

CBeebies | 2007 | 14'15''

Nina tries to find out where shadows come from, but isn't having any luck. She heads off to Spain where there's lots of sunshine and h...

S01E19: Making Music | Nina and the Neurons

S01E19: Making Music | Nina and the Neurons

CBeebies | 2007 | 14'09''

Joel wants to make music, so Nina helps him find household objects that he can use as instruments.

S01E21: Staying Cool | Nina and the Neurons

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CBeebies | 2007 | 14'24''

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S01E23: Bud Needs Help | Nina and the Neurons

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CBeebies | 2007 | 14'26''

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