Curated Video
Stem Cells: Unlocking The Potential to Regenerate Tissues
Revealing the amazing and unique properties of stem cells, and how they can be used to regenerate tissues. Biology - Cells And DNA - Learning Points. There are three different types of stem cell: embryonic, foetal and adult. Stem cells...
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HIV/AIDS: Immune Evaders
What makes HIV the world's most deadly virus? Its abilities to constantly evolve and to attack the body's immune system lie at the heart of its deadly nature. Biology - Cells And DNA - Learning Points. Human Immunodeficiency Virus (HIV)...
Curated Video
The History of the Microscope
A brief history of how the microscope has transformed from simple magnifying glasses to the powerful instruments of today. Biology - Cells And DNA - Learning Points. The Romans produced the first magnifying glasses in the 1st century AD....
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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...
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Bees and Their Hives
What is it about hexagons that makes them the perfect building blocks for beehives? Discover why they are the best use of space. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math...
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Osmosis and Volume
We look at the effects of osmosis on the volume of potato and the appearance of red onion cells. Two cylinders of potato are measured and weighed before one is placed in salt water and the other in fresh water. We can see how osmosis...
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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...
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Agar Cube Diffusion
We use coloured agar cubes to see how different shapes change the rate of diffusion. The cubes are made using sodium hydroxide and phenolphthalein indicator to give them a pink colour. When these are added to hydrochloric acid, the...
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Therapeutic Stem Cells
Stem cell therapy is a radical new treatment with the potential to restore eyesight and heal injuries. However, many object to its moral implications. Biology - Cells And DNA - Learning Points. Stem cells can repair or rebuild damaged...
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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...
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The Dark Side of Oxygen
We depend on oxygen for life. But in fact, oxygen is corrosive: ageing us, damaging cell DNA, and 'rusting' us from the inside. Biology - Human Body - Learning Points. Oxygen is vital in powering every cell and process in the human body....
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The Cell Membrane
Journey inside the cell to see how the cell membrane acts as both a barrier and an entrance. How does it take in nutrients while keeping out potentially damaging molecules? Biology - Cells And DNA - Learning Points. The cell membrane...
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Cloning
A look at natural cloning and the main artificial cloning techniques devised by man, including embryo transplant and fusion cell cloning. Biology - Cells And DNA - Learning Points. Cloning occurs naturally in asexual reproduction in...
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Cilia
Tiny, hair-like projections from the surface of a cell that wave in unison to cause movement. 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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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...
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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...
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Metabolism
The chemical reactions that occur in all living cells to extract, convert, and use the energy from food, to fuel all other cell processes. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
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Organism
Any living system, such as a plant or animal, that can respond to stimuli, reproduce, grow, and can maintain a stable internal condition in a changing environment. A Twig Science Glossary Film. Key scientific terms defined in just 60...
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Diet and exercise – Jigsaw
What is it? ... It's a fat cell! Life processes - Humans and other animals - Diet and exercise A Twig Tidbit Film - Jigsaw. An image is slowly revealed as pieces of the jigsaw are removed. The children have to identify it.
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Cells – Clip
Meet an amoeba, a single-celled organism that can do everything necessary to live. Life processes - Living processes - Cells A Twig Tidbit Film - Clip. A short film that extends the learning beyond the curriculum.
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What is a Cell? - Cell Basics
Every organism is made up of cells, but what exactly is a cell? Life processes - Living processes - Cells Learning Points A cell is the most basic unit of life. Cells are the building blocks of all living things. There are many types of...
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Reproduction
Reproduction takes place in all living things, but what do we mean by reproduction? Life processes - Living processes - Reproduction Learning Points Reproduction is when living things produce young to ensure the survival of a species....
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Reproduction and Species Continuity: Cell Division in the First Phase of Meiosis
Reproduction and species continuity
Curated Video
Reproduction and Species Continuity: Cell Division in the Fifth Phase of Meiosis
By the end of this learning object, the student will be able to: Explain the fifth phase of meiosis.