Curated Video
Polarisation
Polarisation is the process by which a transverse wave, such as a light wave is made to oscillate in one plane only. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Frequency
The rate at which a repeating event occurs, usually measured in counts per unit time. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
Curated Video
Longitudinal wave
A waveform in which the vibrations of the medium it is propagated through are in the same direction as the wave's travel. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
Curated Video
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...
Curated Video
What is an Earthquake?
The earth below our feet is continually moving. How do changes underground lead to effects on the surface, and what happens to change these movements into devastating earthquakes? Earth Science - Geology - Learning Points. Movement of...
Curated Video
Predicting Volcanic Eruptions
Learn how scientists can predict volcanic activity using seismology to monitor lava patterns deep underground. Earth Science - Geology - Learning Points. Scientists use seismology to predict an eruption. A "long-period event" involves...
Curated Video
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...
Curated Video
Heat Transport
Conduction, convection and radiation are all ways in which heat is transported. How does each work, and what are they useful for? Physics - Energy And Radioactivity - Learning Points. The three types of heat transport are conduction,...
Curated Video
What is Sound?
Sounds can vary greatly: extremely quiet or deafeningly loud, high and shrill to low and booming. Why are they so different? Physics - Waves - Learning Points. Sound is a vibration passed to and fro along particles forming a wave. It can...
Curated Video
Dancing Polymer
We create a polymer using cornflour and water called oobleck. Oobleck is a non-Newtonian liquid that behaves like a solid and a liquid. When placed on a speaker, the vibrations cause the polymer to constantly change its behaviour and it...
Curated Video
The Senses
We make sense of the world around us through touch, smell, sight, taste and sound. But what are these senses and how does the body and brain process them? Biology - Being Human - Learning Points. Our senses detect information from our...
Curated Video
Vibrations - Sound Creation
Sounds are made by tiny movements called vibrations. The world around us - Light and sound - Vibrations Learning Points Some sounds are loud and some sounds are quiet. Without a vibration there is no sound. A Twig Junior Film - Core...
Curated Video
How does sound travel?
Sounds travel in waves. The world around us - Light and sound - Sound Learning Points Sounds are made by tiny movements called vibrations. Sound energy travels in waves. These vibrations travel out from the sound source in all...
Curated Video
How does sound travel? – Odd one out
Four different locations are shown, but which is the odd one out? Physical processes - Sound - How does sound travel? A Twig Tidbit Film - Odd one out. The children have to work out which of four images is the odd one out.
Curated Video
Journey through the ear
Journey through an ear to discover how we hear sound... Physical processes - Sound - How do we hear? Learning Points The eardrum transmits vibrations to the ossicles. The cochlea sends signals to the auditory nerve. The auditory nerve...
Curated Video
Howler monkeys
Meet the howler monkey – the loudest animal on land. Physical processes - Sound - Volume Learning Points Volume is a measure of the loudness of a sound. High-energy sounds are loud. Low-energy sounds are quiet. The larger the vibrations,...
Curated Video
Infrasound - Low-Pitch Sounds
Find out about infrasounds – sounds that are too low-pitched to be heard by humans. Physical processes -Sound - Changing pitch Learning Points Infrasounds are too low-pitched for humans to hear. Low-pitched sounds have fewer waves per...
Curated Video
How do sounds travel?
Find out that sound waves always need a medium to travel through. Physical processes - Sound - How does sound travel? Learning Points Sound waves are known as compression waves. Sound waves travel at different speeds depending on the...
Curated Video
Ultrasound - Dolphin Communication
Learn how dolphins use ultrasound to communicate. Physical processes -Sound - How do we hear? Learning Points Sound travels faster in water than in air. Ultrasounds are too high pitched for humans to hear. Dolphins communicate using...
Curated Video
Why don't some animals have ears?
Do animals like snakes and grasshoppers have ears? Life processes - Humans and other animals - Humans' and other animals' needs Learning Points Humans and other animals have some common features. Some animals use organs other than ears...
Wonderscape
Understanding How We Perceive Sound
Delve into the fascinating process of hearing and how our ears transform sound waves into signals for our brains to interpret. Learn about the intricate anatomy of the ear and how it enables us to experience the richness of sound. Sound...
Wonderscape
Exploring Sound: Understanding its Nature and Transmission
Dive into the world of sound and learn about its properties, production, and transmission. Discover how vibrations create sound waves and how they travel through different mediums. Sound part 1
Wonderscape
Understanding Earthquakes: The Role of Tectonic Movements
Dive into the dynamics of earthquakes, from the initial tremors to the science behind their measurement. Learn how seismologists use seismographs to detect seismic waves and locate epicenters, aiding in earthquake preparedness and the...
Curated Video
The Healing Powers of Pets: Purring Therapy and Cancer Detection
Discover how our pets not only provide companionship but also offer significant health benefits. Explore the science behind the soothing effects of cat purrs, used as a form of stress relief, and learn about innovative research where...