When light hits something, a number of things can happen: it can be reflected, refracted, diffracted or absorbed. But what does this mean? Physics - Waves - Learning Points. Manipulation of light is vital to our survival. Light waves...

Discover the geometry underlying the design of Chartres Cathedral in France, and its many decorative features. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films show abstract...

While it might seem that beauty is in the eye of the beholder, two universal factors transcend cultures. Discover how symmetry and proportion relate to our perception of attractiveness. Maths - Measurement A Twig Math Film. Reinforce and...

Recreating the mirror lines of the Taj Mahal using coordinates to investigate reflective symmetry. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films show abstract concepts in...

We dissect and examine the different parts of a sheep's eye. These include the iris, retina, aqueous humour, vitreous humour, optic nerve and the lens. The lens is also used to distort the pattern on a piece of card to demonstrate how it...

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...

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...

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...

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...

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...

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...

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...

Light is focused on to an object ... what happens next?
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- Reflection />

Learning Points
Focusing light usi
n

g mirrors generates a lot of heat.


A Twig...

When we landed on the Moon in 1969 we left behind some mirrors ... discover why.
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Physical processes - Ligh
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- Reflection />

Learning Points
Shiny, smooth surfaces bounce
l

ight back and are...

Discover how some animals use reflected sound known as echolocation to navigate.
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Physical processes - Sound - How does


sound travel? />

Learning Points
An echo is the r
e

flection of a sound...

Understand how rainbows are formed.
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Physical processes - Light


- White light />

Learning Points
Rainbows are arcs of sunl
i

ght split into different colours.


Rainbows are...

Explanation that light is a form of energy that allows us to see.
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Physical processes - Light -
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hat is light? />

Learning Poin
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s
Light is a form of energy.
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Light...

Differentiating between light sources and light reflectors.
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Physical processes -Light -
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hat is light? />

Learning Points
Objects that em
i

t light are called light sources.
...

Six different objects are shown, four of them are reflective surfaces ... can you spot them?
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Physical processes - Ligh
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- Reflection />

Learning Points
Shiny, smooth surfaces bounce...

Understand that reflection is light bouncing off a surface.
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Physical processes - Ligh
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- Reflection />

Learning Points
Reflection occ
u

rs when light bounces off objects.
...

Understand that sound is a form of energy created by vibrations.
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Physical processes - Sound -
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hat is sound? />

Learning Poin
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s
Sound is a form of energy.

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r/> Sound...

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...

Discover how British inventor Percy Shaw came up with the idea of Cat's Eyes.
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Physical processes -Ligh
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- Reflection />

Learning Points
Shiny, smooth surfaces bounce l
i

ght back and are...

By the end of this learning object, the student will be able to: Summarize the lesson.87618