Curated Video
Rubens' Tube
We create a Rubens\u2019 Tube to demonstrate the movement of sound waves. A tube lined with holes is filled with propane and connected to a speaker. We light the gas coming from the holes and play different frequencies and volumes of...
Curated Video
Heat Absorption
We use two cans, one painted black and the other painted white, to investigate heat absorption. The containers are placed in front of a heat source and the temperature change is recorded. This shows that the black container absorbs heat...
Curated Video
Heat Loss
We compare two cans, one painted black and the other painted white, to see how quickly they lose heat. The containers are placed in front of a heat source and heated to the same temperature. The temperature in each container is recorded...
Curated Video
Splitting Light
We use a prism to split white light into its constituent colours. Light is passed through a slit in a screen before it hits the prism. The prism refracts the light and we can see the different colours. A second slit can be used to see...
Curated Video
Medical Marvels: Ultrasound
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...
Curated Video
Transformations: Skateboarding
Watch how a skateboard shape is transformed when tricks are performed, by sliding, rotation and reflection. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films show abstract...
Curated Video
Focus
In optics, the point at which rays of light converge after refraction or reflection, and so the point at which a sharp image will be produced. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
Curated Video
Reflection – What happens next?
Light is focused on to an object ... what happens next? Physical processes -Light - Reflection Learning Points Focusing light using mirrors generates a lot of heat. A Twig Tidbit Film - What happens next? A short section of film is...
Curated Video
Reflection – Clip
When we landed on the Moon in 1969 we left behind some mirrors ... discover why. Physical processes - Light - Reflection Learning Points Shiny, smooth surfaces bounce light back and are good reflectors. A Twig Tidbit Film - Clip. A short...
Curated Video
How does sound travel? – Clip
Discover how some animals use reflected sound known as echolocation to navigate. Physical processes - Sound - How does sound travel? Learning Points An echo is the reflection of a sound off a surface. A Twig Tidbit Film - Clip. A short...
Curated Video
What is a Rainbow? - Rainbow Formation
Understand how rainbows are formed. Physical processes - Light - White light Learning Points Rainbows are arcs of sunlight split into different colours. Rainbows are formed when water refracts and reflects white light. A Twig Curriculum...
Curated Video
What is Light? - Understanding Light
Explanation that light is a form of energy that allows us to see. Physical processes - Light - What is light? Learning Points Light is a form of energy. Light travels in straight lines. Reflection occurs when light bounces off objects....
Curated Video
Light sources
Differentiating between light sources and light reflectors. Physical processes -Light - What is light? Learning Points Objects that emit light are called light sources. Objects that reflect light are called light reflectors. Reflectors...
Curated Video
Reflection – Spot the...
Six different objects are shown, four of them are reflective surfaces ... can you spot them? Physical processes - Light - Reflection Learning Points Shiny, smooth surfaces bounce light back and are good reflectors. Rough surfaces bounce...
Curated Video
What is a reflection?
Understand that reflection is light bouncing off a surface. Physical processes - Light - Reflection Learning Points Reflection occurs when light bounces off objects. Smooth surfaces reflect light in one direction. Rough surfaces are not...
Curated Video
Sound is energy
Understand that sound is a form of energy created by vibrations. Physical processes - Sound - What is sound? Learning Points Sound is a form of energy. Sound travels in waves away from the source. Sound waves travel in all directions....
Curated Video
History of the lighthouse
Explore the history of lighthouses. Physical processes -Light - Light sources Learning Points Reflectors can be used to concentrate the brightness of light sources. Lenses refract, or bend light and concentrate it into a beam. A Twig...
Curated Video
Cat's eyes
Discover how British inventor Percy Shaw came up with the idea of Cat's Eyes. Physical processes -Light - Reflection Learning Points Shiny, smooth surfaces bounce light back and are good reflectors. Cat's eyes are excellent reflectors. A...
Curated Video
Geometry and Measurements: Geometric Transformation
By the end of this learning object, the student will be able to: Summarize the lesson.87618
Curated Video
Reflection and Refraction of Light: Law Of Reflection
By the end of this learning object, the student will be able to: Identify the concept and laws of light reflection.13536
Curated Video
Reflection and Refraction of Light
By the end of this learning object, the student will be able to: Summarize the main points related to the reflection and refraction of light.86740
Curated Video
Reflection and Refraction of Light: Refracted Light
By the end of this learning object, the student will be able to: Recognize the concept of light refraction.86732
Curated Video
Sound and Light: Reflection and Refraction of Light
By the end of this learning object, the student will be able to: Demonstrate light refraction and some related concepts.86717
Visual Learning Systems
Light and Seeing
This video helps students develop a model to describe how light reflects from objects and then enters the eye. Real-life examples illustrate how this process enables us to see things around us. The video helps students conduct hands-on...