This is the Fun Kids Science Weekly. My name's Dan. This is the show where we try and learn all the secrets of stuff inside the universe.

Now this week we learn about one of the most deadly snakes in the world. Also, we'll chat about some of the most strange and wondrous things that you might not know about in nature.

And I'll answer some of your questions.

Today they're about tornadoes, your joints and oranges as well.

That's on the way first.

Let's catch up with one of our favourite geniuses here on the Science Weekly,

who we've not heard of in a while.

This is Sir Sidney McSprocket,

talking about how things that we use every single day pretty much are made.

How's it made?

Oh, hello, Sir Sidney McSprocket here.

I've been in action capturing facts all about manufacturing.

It's for this rather splendid stipendary compendium I'm compiling. You just ask it how

something is made and it'll oblige with a wholesome explanation. Just watch. How are tin cans made?

The sort you get fizzy popping.

Well, I see that the aluminium that the cans I'm made from is derived from an ore called bauxite. Oh, and that quite a lot of the aluminium used also comes from recycled cans.

There's tiny amounts of other metals metals too, like magnesium and copper.

Step one. The first step is cutting a blank. A big lump of aluminium is rolled into a thin sheet and a 14 centimetre circle is cut out. This will make the base and sides of the can.

The circles are laid out in a way that leaves as little waste as possible,

a bit like when your granny makes biscuits with a pastry cutter.

Step 2.

The next step is called drawing the cup.

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