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Medium
Matter in which something happens, is transmitted, or is stored. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
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Volume
The amount of space a substance occupies. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts and...
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Pitch
The perceived frequency of a sound or musical note. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
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Sensory
Relating to the senses or to sensation. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts and key...
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Kilohertz
A unit for measuring frequency, equal to one thousand hertz or cycles per second. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Infrasound - Low-Frequency Sound
Sound at frequencies below 20 Hertz, the lower limit of normal human hearing. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Supersonic
Travelling faster than the speed of sound in a given medium. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
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Transducer
A device that converts one form of energy into another. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
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Receptor
In living organisms, receptors are proteins, often found on the surface of a cell, which can bind to a specific signalling molecule or external stimulus, triggering a response. A Twig Science Glossary Film. Key scientific terms defined...
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Reflection
The change in direction of a waveform at the boundary between two different media, so the wave returns to the medium in which it started. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images...
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What Happens When I Crack My Knuckles?
Discover what is happening when you crack your knuckles. And for starters, your knuckles don't crack, they pop. Biology - Human Body - Learning Points. Your knuckles do not crack - they pop! The noise is the bursting of a gassy bubble,...
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Efficiency
The proportion of energy supplied to a device or process that is converted into a useful form. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Harmonics
When a musical note is played, we hear the note intended - the fundamental - but also other tones called harmonics that are whole number multiples of the fundamental. A Twig Science Glossary Film. Key scientific terms defined in just 60...
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Echolocation
A technique used by some animals to locate the position of objects around them, by producing sounds and listening to their echoes. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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Octave
The interval between one sound and another that has double the frequency. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Musical Instruments
Different instruments can produce a wide variety of different sounds and notes, but why is this? Revealing how scientific principles combine to make music. Physics - Waves - Learning Points. Musical instruments are designed based on the...
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Resonance: How Sound Changes Across Different Mediums
Sounds can change as they move from one medium to another. Under the right circumstances the effect is surprising and extreme. Physics - Waves - Learning Points. Sound is a wave that is created by vibrating objects. Every object has a...
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How Do Mobile Phones Work?
Microwaves are not only used to heat food. Mobile phones utilise this type of electromagnetic radiation, allowing us to communicate over large distances. Physics - Waves - Learning Points. Mobile phones work by converting the sound into...
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Factpack: Pregnancy Timeline
See what's happening during different stages of pregnancy, as the baby changes from conception to birth. Biology - Being Human - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use...
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Great Grey Owl
Follow a great grey owl through the seasons, from winter hunts to summer parenting. Biology - Animal Kingdom - Learning Points. Like all birds of prey, the great grey owl has forward-facing eyes, which give it excellent binocular vision....
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Factpack: Experience Friction
An interactive demonstration of how friction is created, and its effects. Physics - Forces - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention at the start of a...
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Echolocation: Dolphins
Dolphins use of sound as a navigational tool is essential to their survival. Discover how they produce these sounds and use them to learn about their environment. Physics - Waves - Learning Points. Dolphins, like most marine species, use...
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Fractions: Pythagorean Tuning
How fractions are used in music – and Pythagoras built a whole musical scale based on fractions! Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts...
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How We Hear
How our ears hear different frequencies, and how they work with the brain to turn these into sounds which we understand. Biology - Being Human - Learning Points. Sounds are simply movements of air molecules. Our ears are extremely...