Hey, it's Dan. Welcome to the Fun Kids Science Mid-weekly. It's our little speed through the solar system uncovering some of those strange sciencey bits that lurk here and there. We're doing two a week now. Every Wednesday I am here with some amazing little nuggets of knowledge for you. This week, I'm answering your most burning questions about colour.

Ever wondered how the sky changes from light to dark blue,

from brilliant shades of red to that purple hue?

Or maybe you find the sky a little bit done.

It's there all the time.

So we'll cover YP is yellow too. Let's find out.

Hello, my name is Declan and I'm seven and why is your P yellow?

Declan, thank you for this. We're starting at the very bottom, are we? Why is Pee Yellow? When we

eat and drink, our body uses nutrients and all the good stuff from that. It helps to fuel us.

It gives us energy. It helps to repair our muscles and keep our organs going. But when we digest those

nutrients, we make new chemicals along the way.

They are byproducts of the food that we don't really need. Now, one of them is made by your kidneys.

It's a chemical called Eurabilin, which is normally bright yellow colored. And that Euribillin goes right in your pee.

Think about it. Don't think about it too hard because it's kind of gross, but think about it. Your pee is normally yellow or clear, right? Now, when you've had a

lot of water, it fills your bladder up and it goes straight out. And this chemical, the urbillin that

your kidney is making, is dissolved in the water so it

looks clear. When you've not had a lot of water and you're dehydrated, you're still making

that year a billion because your kidney is still working, so you still need to pee, but there's

nothing for it to dissolve into because you've not had enough water, so it comes straight out

without being filtered. It comes straight out without being filtered.

It comes straight out bright yellow. So that is why your wee is yellow and the general rule is

if your pee is yellow, you need to drink more water. I think the general rule for drinking is

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