Resources by Twig

Telescopes

This film, from Twig World, looks at who invented telescopes and how they have developed throughout history.

The key points made in the film are:

•The first optical telescopes were made around 1608. •Early telescopes consisted of a convex lens and an eyepiece.

•Later telescope designs used...

The Last Day of Pompeii

This film, from Twig World, looks at the eruption of Mount Vesuvius which devastated Pompeii, encasing the whole city in ash for nearly 1500 years.

The key points made in the film are:

•On 24 August 79 AD, the inactive Mount Vesuvius erupted, sending molten rock 15km into the sky. •Four billion...

The Longitude Problem

This film, from Twig World, looks at the relationship between time and place. In an age before satellite navigation and GPS, one man found an ingenious solution to the problem of determining a ship's location at sea. The key points made in the film are: •Lines of latitude circle the Earth horizontally; lines of...

The Search for Dark Matter

This film, from Twig World, looks at the work of scientists, deep underground in a disused mine in Yorkshire, searching for particles that can't be seen and have never been detected, but might bind our Universe together.

The key points made in the film are:

•Dark matter is believed to make up about...

Time Zones

This resource, from Twig World, looks at time zones around the planet and how these changes affect people.

The key points made in the film are:

•There are 24 time zones, which are regions on Earth that are bound by longitudinal lines. •Local time depends on what time zone you are in. •The system of...

Tropisms and Hormones *suitable for home teaching*

This film, from Twig World, looks at plant hormones and tropisms. The key points made by the film are: •Tropisms allow plants to seek out the best conditions for survival. •Tropisms are controlled by hormones called auxins. •Tropisms react to varying conditions of light, gravity and water. •There are both...

Vegetable Oils As Fuel

This film, from Twig World, looks at the processes involved in using vegetable oil as a biofuel and whether it could become a viable alternative to fossil fuels.

The key points made in the film are:

•Vegetable oil is made of long chains of carbon atoms similar to diesel oil or gasoline. •Vegetable...

Volcanoes: LEDC Response

This film, from Twig World, looks at disaster response in less developed countries. In 2002, the Nyiragongo volcano in the Democratic Republic of the Congo erupted. As a Less Economically Developed Country (LEDC), the Democratic Republic of the Congo was unprepared and less able to mount an effective response to...

Volcanoes: MEDC Response

This film, from Twig World, looks at disaster response in developed countries. In the Spring of 1980, the Mount St Helens Volcano in Washington State erupted in one of the most violent events in recorded history. But a human catastrophe was prevented due to the More Economically Developed Country's (MEDC)...