Curated Video
Phospholipid
A lipid that contains a phosphate group. Lipid molecules are normally hydrophobic, which means they repel water. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Receptor
In living organisms, receptors are proteins, often found on the surface of a cell, which can bind to a specific signalling molecule or external stimulus, triggering a response. A Twig Science Glossary Film. Key scientific terms defined...
Curated Video
Autotroph
An organism that can make its own food, being able to produce complex organic compounds, such as proteins and carbohydrates. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
Curated Video
Chromosome
A threadlike strand of DNA and associated proteins in the nucleus of eukaryotic cells, and the functional units of inheritance. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Factpack: Enzymes
How enzymes power the everyday chemical reactions our bodies rely on. Biology - Cells And DNA - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention at the start of...
Curated Video
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...
Curated Video
How Does DNA Make Protein?
DNA carries genetic information to produce proteins and build new cells: a process at the heart of all life on Earth. Biology - Cells And DNA - Learning Points. Deoxyribonucleic Acid (DNA) carry the genetic code required to make protein...
Curated Video
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...
Curated Video
Immune Defence: Part 2
Antibodies combat some of the strongest foreign invaders that enter your body. What are antibodies and how do they work? Biology - Cells And DNA - Learning Points. Whenever a germ or infection enters our body, white blood cells,...
Curated Video
Food Basics: Proteins
Proteins are at the root of virtually all bodily functions, from growth to metabolism to transporting oxygen around the body. Learn how your body makes or ingests all the protein you need. Chemistry - Chemical Industries - Learning...
Curated Video
What is a Calorie?
Everything we eat contains calories. We need them to function and carry out everyday tasks. How do we know which foods are right to eat and which contain 'empty calories'? Chemistry - Chemical Industries - Learning Points. Calories are...
Curated Video
What is a Cell? - Life’s Building Blocks
Every living thing on our planet, from plants to animals, is made up of cells. Cells are the building blocks of life, but what are they and how do they work? Biology - Cells And DNA - Learning Points. All cells have vital genetic...
Curated Video
How Do Carb-Free Diets Work?
What would happen if we removed one of our three basic food groups? Discover how reducing your intake of carbohydrates and increasing protein can affect your body. Chemistry - Chemical Industries - Learning Points. A low-carbohydrate,...
Curated Video
Microbes in Milk
We examine the number of microorganisms in different types of milk using resazurin indicator. Samples of pasteurised milk, UHT milk and powdered milk are left in the open for three days before resazurin indicator is added and the samples...
Curated Video
Kiwi Fruit DNA
We extract the DNA from a kiwi fruit by mashing it with detergent liquid, salt and water. The mixture is then filtered and incubated before a layer of chilled ethanol is added. The jelly-like DNA can then be extracted. Biology - Cells...
Curated Video
What is DNA?
How does our DNA make us unique, and how is this unique genetic information passed on when cells divide? Biology - Cells And DNA - Learning Points. Deoxyribonucleic Acid (DNA) molecules are found in chromosomes within all our cells. DNA...
Curated Video
Plasma (physics)
A gaseous state of matter which contains a significant proportion of electrically charged particles called ions. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Phloem
The tube-like tissue in plants that carries nutrients, including sugar and proteins, from cells in which they are made to where they are needed elsewhere in the plant. A Twig Science Glossary Film. Key scientific terms defined in just 60...
Curated Video
Ribosomes
The structures inside cells that synthesize proteins. 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...
Curated Video
Changing properties
What chemical and physical changes are at play in cake baking. Material processes - Changing materials - More chemical reactions Learning Points Chemical changes are usually irreversible. Physical changes are usually reversible. Chemical...
Curated Video
What is a Balanced Diet?
Discover the key to a balanced diet. Life processes - Humans and other animals - Diet and exercise Learning Points A balanced diet contains all the nutrients the body needs. The body also needs protein, vitamins, carbohydrates, fats and...
Curated Video
Sloth vs cheetah
The sloth and the cheetah have different energy needs. This is reflected in their diet. Physical processes - Energy and energy transfer - Storing energy Learning Points Stored energy is a type of potential energy. All animals store the...
Curated Video
The Complement System Song: How The Complement System Works
Do you know complex our complement system is? Check out "The Complement System Song" This song goes over the entire process from the complement system being made up of proteins that are mostly produced in the liver to helping antibodies...
Wonderscape
Lizards: Nature's Hidden Helpers
Discover how lizards contribute to medicine and technology in remarkable ways. Learn about the Komodo dragon's potential in fighting antibiotic resistance, the Gila monster's role in diabetes treatment, and the gecko's unique climbing...