Resources by Twig

Jai Singh

This video, from Twig World, explains how the city of Jaipur in India was designed by the mathematician and King Jai Singh II. In order to ‘unravel the mysteries of the Heavens’, he built a series of observatories and the largest sundial in order to make the most accurate sundial in the world.

The video is...

Kilauea - the Island Maker

Volcanoes are infamously destructive, but they can also be a constructive force. This film, from Twig World, looks at how Mt. Kilauea, the world's most active volcano, helped create the islands of Hawaii millions of years ago.

The key points made in the film are:

•Mount Kilauea in Hawaii is the...

Kittinger: First Man in Space

This film, from Twig World, tells the story of Joe Kittinger who made the first journey beyond Earth's atmosphere.

The key points made in the film are:

•Project Excelsior III was the American Air Force’s mission to test high altitude bailouts.

•As part of this mission Colonel Joe Kittinger...

Leaded and Unleaded Petrol

This film, from Twig World, looks at the dangers of tetraethyl lead in petrol.

The key points made in the film are:

•Lead was added to fuel to make it better for our engines. •However, lead is a dangerous pollutant. •It is toxic and damages our inner organs. Leaded fuel caused a health scare. •...

Mapping the Sea *suitable for home teaching*

This film, from Twig World, looks at how the oceans can be mapped. Charting the waters around the Scottish island of Orkney was a pivotal moment in maritime mapping. But a reliance on outdated maps places modern ships in danger. The key points made in the film are: •Before mapping of the sea floor began, hazards...

Milky Way's Black Hole

This film, from Twig World, looks at how scientists study black holes. Scientists believe there is a supermassive black hole 26,000 light years away at the centre of our Galaxy. But how do they know, when they can't see it?

The key points made in the film are:

•Black holes are formed when massive...

Ordnance Survey Maps

This film, from Twig World, looks at the history of ordnance survey maps. Ordnance Survey has been creating maps for hundreds of years. How have their mapping methods changed since the first Ordnance Survey maps were made?

The key points made in the film are:

•The British Ordnance Survey team are...

Parasitic Plants

This film, from Twig World, looks at different species of parasitic plants.

The key points covered in the film are:

•Parasitic plants derive some or all of their nutrients from other plants. •Some plants latch on and stay in balance with their hosts. •Some kill their hosts. •Examples include...

Photosynthesis *suitable for home teaching*

This film, from Twig World, journeys into the chloroplast to show how plants convert sunlight into usable chemical energy through the process of photosynthesis. The key points covered in the film are: •Leaves are small solar-powered food factories. •Through a process called photosynthesis they make their own food...