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Core (Earth sciences)
The central, usually hottest and densest, part of a larger structure, for example a star, planet or galaxy. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Stellar Space Vocabulary for IELTS
Today we’ll learn space vocabulary for IELTS Writing Task 2 and Speaking Part 3.
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Alkaline earth metal
A group of metals that form group two of the periodic table. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
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Earth: The Third Planet in Our Solar System
The planet we live on is the third of the four rocky planets in our Solar System. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Crash Course
How and Why We Read: Crash Course English Literature
In which John Green kicks off the Crash Course Literature mini series with a reasonable set of questions. Why do we read? What's the point of reading critically. John will argue that reading is about effectively communicating with other...
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Eclipse, lunar
An alignment of the Earth directly in between the Sun and the Moon, so that the earth's shadow falls on the Moon and obscures all or part of it. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
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Astronomy
The branch of science that studies the physical universe beyond Earth's atmosphere. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Magma
Molten rock below the surface of the Earth. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts and...
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Moon
A general name for a natural satellite of a planet, but also the specific name for Earth's only natural satellite. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Earthquake
A shaking of the Earth's surface due to a release of energy within the crust that generates seismic waves. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Meteorite
A rocky fragment from space that survives its fiery passage through the atmosphere and falls to Earth. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Epicentre
The position on the Earth's surface directly above the point at which an earthquake originates. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Oceanic crust
The uppermost solid layer of the Earth beneath the oceans. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
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Lithosphere
The upper layers of the Earth, consisting of the crust and upper mantle, as opposed to the more fluid lower mantle and core. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
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Weight
The force of gravity acting on a mass, measured in newtons. On Earth, gravity exerts a force of just under 10 newtons per kilogram. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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Altitude
Height above sea level or other reference point on the Earth's surface. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Biosphere
All the parts of the earth and its atmosphere in which living organisms can exist. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Basalt
A dark, fine-grained igneous rock that forms most of the Earth's crust. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Plate boundary
Boundaries where the Earth's tectonic plates meet, where crust can be made, destroyed, and deformed as adjacent plates move. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
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Weathering: The Breakdown of Rock by Physical and Chemical Processes
The breakdown of rock into smaller pieces by physical and chemical processes at the Earth's surface. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Primeval soup
Or primordial soup, refers to the medium in which the first life on Earth may have originated. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Continental crust
The uppermost layer of the Earth that forms the continents and coastal sea floor, sitting on top of a layer of denser rock called the mantle. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
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Pangaea
The supercontinent that included all of Earth's land surface about 200-300 million years ago. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Eclipse, solar
When the Moon is aligned directly in between the Sun and the Earth, it obscures all or part of the sun to an observer on the ground. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...