Curated Video
Antibody
A protein produced by the immune system that attacks a harmful agent, such as a virus or bacteria. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Cell wall
A flexible or rigid boundary protecting a cell, outside the cell membrane. 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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Cell
The basic structural and functional unit of life. 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...
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Prokaryote
Organisms whose cells lack a nucleus and other membrane-bound structures. 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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Bacteria
Single-celled microorganisms, which do not have a nucleus, and reproduce by simple cell division. 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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Archaea
A type of prokaryotic organism lacking a cell nucleus, similar to bacteria but now considered as a domain in their own right. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
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Antigen
A molecule or fragment of a molecule that triggers an immune response, causing the body to produce specific antibodies against it. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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Antibiotic resistance
The ability of bacteria to survive exposure to an antibiotic, often by producing a protein that disables or prevents transport of the antibiotic into the cell. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds...
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Asexual reproduction
Reproduction involving just one parent, without the mixing of genetic material with another individual. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Anaerobic Respiration: Energy Production Without Oxygen
Cellular respiration in the absence of oxygen. Like aerobic respiration, it converts glucose into usable energy, in the form of ATP. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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Photosynthesis: Converting Sunlight into Chemical Energy
The process that plants use to convert energy from the Sun into chemical energy. 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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Burps and Farts
A look at the biological functions that produce burps and farts. Biology - Human Body - Learning Points. Burps are caused when swallowed air forces open the stomach sphincter and travels up the oesophagus. Farts are caused when swallowed...
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Salt: Food Preservative
Salt was discovered thousands of years ago as a way of preserving food. How does it do this? And what else does salt preserve? Chemistry - Chemical Industries - Learning Points. Food rots because of bacteria and fungi. Salt is an...
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Factpack: Scale of the Atom
How small is an atom? Comparing the size and number of atoms in tiny objects. Chemistry - Atoms And Bonding - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention...
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Factpack: Mercury in Food Chains
Discover how mercury travels through food chains, and how its concentration multiplies along the way. Biology - Ecosystems - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to...
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Factpack: Bacteria
Find out about these tiny life-forms that have the potential to determine the big things in life, such as whether we live or die. Biology - Cells And DNA - Learning Points. A Twig FactPack Film. Open a discussion on what has been already...
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Factpack: Classification
Discover the systematic grouping of organisms according to the structural or evolutionary relationships among them. Biology - Adaptation And Evolution - Learning Points. A Twig FactPack Film. Open a discussion on what has been already...
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Life in Space
Bacteria from a sneeze was inadvertently sent to the Moon. When it returned to Earth, it came back to life. What does this mean for the possibility of life in the Universe? Physics - Universe - Learning Points. In 1969, Apollo 12 went to...
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The Nitrogen Cycle
Nitrogen is integral to the production of protein and DNA. Discover how it is present on Earth in a constant cycle, and how nitrogen from the air enters the food chain. Biology - Ecosystems - Learning Points. The nitrogen cycle describes...
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Genetic Modification
Genetic Modification allows scientists to manipulate the genetic information of cells, even swapping characteristics between different species. But it is a process which has caused a lot of controversy. Biology - Cells And DNA - Learning...
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Large Intestine
The final chapter in the journey of food through our digestive system: how bacteria transforms undigested matter into waste. Biology - Human Body - Learning Points. The large intestine is around 1.5m long and 6-7cm wide. The large...
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Germs and Hygiene
Explore where germs are found, how they can affect us, and how basic hygiene can help us avoid becoming unwell. Biology - Healthy Living - Learning Points. Pathogens are microbes that cause disease. Good hygiene is the best way to limit...
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Sexually Transmitted Infections
The number of infections spread through sexual contact is increasing globally. Why is this? What are STIs? And why do some people not know when they've caught one? Biology - Healthy Living - Sexually Transmitted Infections (STIs) are...
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Nanotechnology: What is It?
Still in its early stages, nanotechnology has the potential to change our world. What is it and how could it be used in the future? Chemistry - Atoms And Bonding - Learning Points. Nanotechnology is engineering on the smallest scale....