We compare melting points of lead and tin to the melting point of their alloy, solder. By timing how long it takes samples of each to melt, we discover that the melting point of solder is actually lower than those of both lead and tin....

We dissect and examine a cow\u2019s lungs. Before the dissection, the lungs are inflated to show the changes in volume that occur when mammals breathe. During the dissection the position and function of different parts are examined,...

We lower a helium-filled balloon into liquid nitrogen to see how the change in temperature affects its volume. When it hits the cool liquid nitrogen, the gas inside contracts and the volume of the balloon decreases. When it is removed...

From our bodies to the oceans and stars, everything is made of millions upon millions of tiny atoms. But what are atoms made of? Chemistry - Atoms And Bonding - Learning Points. The building blocks of all elements are called atoms. Atoms...

From two dimensional maps, to satellite images from space: discover some of the many ways to explore the Earth and its physical and 'human' features. Human Geography - Orientation And Settlements - Learning Points. Maps have been used by...

Born out of research into RADAR in World War Two, ultrasound has become one of the most important medical inventions. What is it, and how does it work? Biology - Being Human - Learning Points. Ultrasound was developed by Ian Donald in...

What the discovery of a skeleton over 2,000 years old tells us about the training techniques of ancient olympians. Biology - Human Body - Learning Points. In 1959 the tomb of an ancient Olympian was discovered in Taranto, southern Italy....

Learn how bones change shape to form the adult skeleton, the problems this causes for growing teenagers, and how to ensure healthy bones for life. Biology - Being Human - Learning Points. Hormones released during puberty cause a rapid...

When measuring very large data sets, like the crowd of 1.8 million who attended Obama's inauguration, often exact counting is impossible. Find out how statisticians use density samples to estimate their statistics. Maths - Accuracy And...

Objects composed of rocky or metallic materials, mainly found orbiting the Sun in a region called the asteroid belt between Mars and Jupiter. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...

A living community of organisms along with their physical environment, functioning as a unit. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

Dive into the world of manta rays with marine biologist Andrea Marshall, exploring their intelligence, threats, and conservation efforts.

Did you know that the dung beetle is stronger than an elephant?
<

br/>

The world around us - Investigating forces - Spee
d

and strength />

Learning Points
The stronger something is, the bigger the...

Discover the size and scale of the Moon.
<

br/>

Our universe - Space adventure - Th
e

Sun and Moon />

Learning Points
>

The Moon is much smaller the Sun.


As
t

ronauts have...

Brussels sprouts are harvested and placed on a large mechanical sieve ... what happens next?
<

br/>

Material processes - Separating mixtures - Separat
i

on by sieving


A Twig Tidbit Film - What happens next?...

How are snowflakes formed in such a dizzying array of patterns?
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br/>

Material processes - Solids, liquids and gases - Characteri
s

tics of water />

Learning Points



Liquid water freezes at...

Investigate why shadows change size during the day.
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Physical processes - Light - The Sun as
a

light source />

Learning Points
Shadows change size during the day b
e

cause of the position...

Adventure around our solar system and explore the four rocky planets.
<

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Physical processes -The Earth and beyond - Th
e

Solar System />

Learning Points
The Solar System is made up o
f

eight...

Find out how a combine harvester separates grains from chaff using sieves.
<

br/>

Material processes - Separating mixtures - Separat
i

on by sieving />

Learning Points
The size of the mesh in a sieve...

Take a journey around our solar system and meet the gas giants.
<

br/>

Physical processes -The Earth and beyond - Th
e

Solar System />

Learning Points
The Solar System is made up o
f

eight planets...

In today's episode, we explore an alternative derivation of the motional emf equation, revealing a fascinating perspective. Picture a conductor moving right on parallel metal rails connected by a wire in a uniform magnetic field. A force...

Learn about the history of computer technology, from the abacus of the ancient world to smartphones of the modern age.

Explore the diverse cultures and landmarks of Europe, from the European Union to the tiny Vatican City. Learn about Asia's vast population, impressive cities, towering mountains like Mount Everest, and iconic sites like the Great Wall...

Communication Professor Reacts to Patricia Fripp's storytelling about bad customer service.