Curated Video
Fajan’s Rules: Predicting Ionic vs. Covalent Bonds
Fajan's rules explain how factors like ion size, charge, and polarizability determine whether a bond will be predominantly ionic or covalent
Curated Video
Anions in Action: Their Role in Ionic Bonding
Anions, formed by electron gain, contribute to ionic bond formation. Larger anions with higher charges enhance the bond's electrostatic attraction
Curated Video
Cations at Work: Shaping Ionic Bonds
Cations, formed by electron loss, influence ionic bond strength. Smaller cations with higher charges create stronger ionic interactions
Curated Video
Flammable
Easily ignited, able to catch fire easily. Flammable materials may be solids, liquids, or gases. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Alkali metal
A highly reactive group of metals that make up group one in 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...
Curated Video
The Legacy of John Newlands
The story of chemist John Newlands and his theory of the "Law of Octaves" that related chemical elements to notes in the musical scale. Did the scientific community accept his unusual theory and does it hold up to the laws of modern...
Curated Video
Flame Colours and Fireworks
Exploring the science behind fireworks, discover how different elements are used to produce different colours of fireworks. Chemistry - Atoms And Bonding - Learning Points. In the mid-19th century the inventor if the Bunsen burner,...
Curated Video
Alkali Metals
Witness the exciting reactions that occur when alkali metals come into contact with other substances. What does this tell us about their properties? Chemistry - Periodic Table - Learning Points. The alkali metals make up Group 1 of the...
Curated Video
Flame Test
We use a Bunsen burner to burn different chemical salts to see how the flame colour changes. This shows that sodium burns with a yellow flame, lithium burns with a red flame, barium burns with a yellow-green flame and copper burns with a...
Curated Video
Hydroxide
Refers to the hydroxide ion, which is a negative ion consisting of an oxygen atom covalently bonded to a hydrogen atom. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
Curated Video
E-waste
Learn about the precious metals that make up mobile phones and how £1 billion worth of e-waste will eventually be dumped in landfills. People and places - Environmental awareness and care - Reduce, reuse, recycle Learning Points E-waste...
Wonderscape
The Anthropocene Epoch: Humanity's Impact on Earth
Explore the Anthropocene Epoch, a proposed geological epoch highlighting the significant impact humans have had on Earth's ecosystems and climate. From vast landfills in Kenya to lithium mines in Chile's Atacama Desert, and the warming...
Curated Video
Single Replacement Chemical Reactions Explained
Learn all about single replacement chemical reactions. We'll break down the process and give examples to help you understand this important topic. Perfect for studying for your chemistry test or just brushing up on your knowledge.
Curated Video
The ONE trick to naming Ionic Compounds with Polyatomic Ions in Chemistry!
A polyatomic ion is an ion that is made up of multiple elements. Whenever we have a polyatomic ion present, we are not going to change the name at all. The name of the polyatomic ion will stay just as it is. So when we look at the ionic...
Curated Video
Electronegativity Periodic Trend - Using the Periodic Table to help determine electronegativity!
Electronegativity is the tendency of an atom to gain an electron. The way I think about it is like tug of war. The stronger an atom can pull in an electron, the higher it’s electronegativity will be. The trend for electronegativity is...
Curated Video
What in the world is IONIZATION ENERGY?!?
Ionization energy is the amount of energy it takes to remove an electron. The stronger the nucleus can hold on to the electron, the more energy that will be needed to remove the electron. The trend for ionization energy is that it...
Curated Video
Periodic Trend - Atomic Size (Radius) Explained!
The periodic trend for atomic size is that the size of the atom gets bigger as you go down the periodic table and from right to left across the periodic table. This trend is sometimes referred to as atomic radius as there is a direct...
Curated Video
Navigating the Complex Treatment of Bipolar Disorder and Psychosis
While many drugs are available to treat bipolar disorder and psychotic symptoms, finding the right medication often involves trial and error, with treatments primarily managing symptoms rather than curing the condition. Lithium remains a...
Financial Times
Europe and the US look to boost their lithium independence
As electric car sales grow, demand for lithium, a key component in EV batteries, has surged. China controls about 60 per cent of global lithium processing, through its vast network of refineries. As the FT’s Harry Dempsey reports, Europe...
Financial Times
Can the auto industry accelerate sustainable production?
FT Tech - Carmakers racing to meet net-zero goals have focused on electric powertrains. But while electric cars do produce less emissions than conventional vehicles, their manufacture is still far from sustainable. As the FT’s Peter...
Curated Video
GCSE Chemistry - Atoms & Ions #1
This video looks at: 0:29 - The structure of an atom 3:22 - What ions are 4:53 - What the nuclear symbol tells us This video is suitable for: - All tiers - All exam boards - Triple and combined science
Curated Video
GCSE Physics - Atomic Structure, Isotopes & Electrons Shells #32
This video covers: - The structure of the atom - The difference between protons, neutrons and electrons - What isotopes are - Energy levels - Ionisation General info: - Suitable for all GCSE and IGCSE courses - Suitable for higher and...
Curated Video
What is Treatment Resistant Depression? What Do We Do about it?
Treatment resistant depression is defined as having 2 failed, 6-week antidepressant trials. Another way of putting is, you have depression, you take medication for at least 6 weeks and you don’t get better. Then you try another...
Curated Video
What is Mixed Mania and How Do We Treat It?
What is Mixed Mania and How Do We Treat It? The official term for mixed mania is bipolar disorder either 1 or 2 with mixed features. With bipolar 1 disorder, you have episodes of depression and episodes of mania. With bipolar 2, you have...