Hello, welcome along to a brand new episode of the Fun Kids Science Weekly. My name's Dan,

thank you so much for agreeing to come with me on this journey across the universe to learn

some of the most amazing stuff that's lurking around inside. This week we'll learn about

a caterpillar who has just seemingly realized really how brutally dangerous it is.

Also, we'll talk about climate changey stuff and why it's causing a mega drought in America.

And also we'll learn why you float sometimes and other times you sink.

I've also got some of your questions on the way in a sec.

First, let's catch up with one of our favorite experts on the show.

This is Professor

Hallex. Professor Hallex's Pathology Puzzles with the Royal College of Pathologists. Now, I know you love

Time Stop, Crime Stop, but you have to turn it off because I've got some pathology puzzle cards here.

Brilliant! I love a good medical mystery. What have you got? Okay, here's a good question. Why, when you

have a blood test, do they take blood in several different tubes? Well, when you have a blood test,

the chances are that your doctor has asked for several different

tests to be performed at the same time.

Different tests may require several samples because different bits of the blood are tested.

It's just easier and safer to have separate samples.

Here's one about forensic pathology, the sort that's all about dead bodies, just like in

Time Cop, Crime, Cop.

Nanobot, how many times do I have to say? The name of the show is Time Stop Crime Cop.

Whatever. Does everyone have an autopsy when they die?

No, about one in every five people has an autopsy after their death. The most common reason for an autopsy being requested is that the cause of death is not known.

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