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The Leaf That Can't Stop Leaking (Biology Level 8)
Season 2 Episode 7
Because a leaf is trying to make food out of thin air, and the doors it has to open to get that air are the same doors its water escapes through. Fir…
1 day, 9 hours ago
Why Your Blood Goes Through Your Heart Twice (Biology Level 8)
Season 2 Episode 6
We're going to follow one red blood cell on one full lap of your body, and find out why its route has two loops instead of one. Then we'll look at wh…
1 day, 9 hours ago
You Are Breathing Out Your Breakfast (Biology Level 8)
Season 2 Episode 5
We're going to follow that breakfast out of you. First we find the door it leaves by, which is your lungs. Then we find where it was turned into gas …
1 day, 9 hours ago
The Cracker That Turns Sweet (Biology Level 8)
Season 2 Episode 4
That sugar was made inside your mouth, just now, by a chemical tool you carry around. Today we follow that cracker all the way through you. First, ho…
1 day, 9 hours ago
The Plant That Robs an Empty Wallet (Biology Level 8)
Season 2 Episode 3
To see why that's impossible, we first need the rule that moves almost everything in and out of your cells for free. Then we'll watch the plant break…
1 day, 9 hours ago
The Cells That Threw Away Their DNA (Biology Level 8)
Season 2 Episode 2
So why would your body build cells that are missing parts? We'll find out what each specialist cell gives up to be brilliant at one job. Then we'll s…
1 day, 9 hours ago
The Cell With a Wall That Isn't a Plant (Biology Level 8)
Season 2 Episode 1
So today we're cell detectives. First we learn the clues that tell a plant cell from an animal cell. Then a suspect turns up that breaks those clues,…
1 day, 10 hours ago
The Plate That Survives the Oven but Not the Floor (Chemistry Level 8)
Season 1 Episode 14
That's what we're chasing: first, what makes ceramics so tough and so fragile at the same time. Then, how people beat that weakness by joining two ma…
1 day, 16 hours ago
Why Your Lunchbox Will Outlive Your Sandwich (Chemistry Level 8)
Season 1 Episode 13
We're going to find out what bread, wool and a plastic box have in common: they're all giant chains. Then we'll see how we learned to build our own c…
1 day, 16 hours ago
Why Nobody Ever Found a Lump of Sodium ready (Chemistry Level 8)
Season 1 Episode 12
That one question is the whole episode. First we work out which metals are the bullies that grab other things and won't let go, and how we know. Then…
1 day, 16 hours ago