Curated Video
Turmeric Acid Base Indicator Experiment
Check out this cool experiment in which Dr. Boyd uses the seasoning Turmeric as an indicator for acids and bases.
0:00 – Introduction
0:21 – What you need
0:53 – Brief explanation of acids and bases
2:15 – Safety Discussion
2:36 –...
Curated Video
De la Guerra Fría a los rayos gamma
Cuando los americanos trataban de detectar la radiación de las bombas soviéticas descubrieron, en realidad, los estallidos de rayos gamma del espacio profundo.
Twig - Física - El universo - El Big Bang
Claves de aprendizaje
...
Curated Video
El ADN y los delitos
Las técnicas de huella genética pueden relacionar una persona con una escena del crimen mediante tan solo unas células. Breve historia de las técnicas de huella genética y los grandes avances que las han hecho posibles.
Twig -...
Curated Video
Los ácidos y los álcalis (primera parte)
Las propiedades de los ácidos y los álcalis fuertes pueden ser muy dañinas. ¿Dónde los encontramos? ¿Cómo podemos saber como de ácida o alcalina es una sustancia?
Twig - Química - Las reacciones - Los ácidos y las bases
Claves...
Curated Video
Difference between acids and bases. And why supervillains love them.
What is the difference between acids and bases? This is a commonly asked question in both chemistry and biology classes. In this video, we will go through the definition of acid and base, and why they are so important to us, and, uh,...
Science ABC
What is DNA and How Does it Work?
DNA (deoxyribonucleic acid) is a molecule that is often called the blueprint of life. Located in the nucleus, the DNA is a very long molecule with a helix winding structure like a twisted ladder. The rungs of the ladder are made of four...
Science ABC
What are Mutations and what are the different types of Mutations?
A mutation is a random change in the DNA. Mutations can be neutral, which means it does not cause a change in a trait of the organism, or it could cause a beneficial or a harmful mutation. There are a few different types of mutations -...
Curated Video
Alkali
An alkali is a solution with a pH greater than 7. 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
Base (chemistry)
A substance that reacts with an acid to form a salt and water. 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...
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
Cold War to Gamma Rays
When the Americans tried to detect radiation from Soviet bombs, they in fact discovered gamma ray bursts - radiation from deep space. Physics - Universe - Learning Points. During the Cold War, the US suspected the Soviets of testing...
Curated Video
Acids and Alkalis: Part 1
The properties of strong acids and alkalis can be extremely harmful. Where do we find them, and how can we tell how acidic or alkaline a substance is? Chemistry - Reactions - Learning Points. Bases neutralise acids, and if a base...
Curated Video
DNA and Crime
DNA profiling can match individuals to a crime scene using only a few cells. A brief history of DNA profiling and the breakthroughs that have made this possible. Biology - Cells And DNA - Learning Points. DNA is described as a...
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
Geometry and Measurements: Lateral Area and the Total Area of a Cuboid
By the end of this learning object, the student will be able to: Find the lateral surface area and the total area of a cuboid. (3 cases).64593
Curated Video
How to Find the Surface Area of Rectangular Prisms
In this video, the teacher demonstrates two methods for finding the surface area of a rectangular prism: creating a net by unfolding the prism and calculating the area of each face, or using a formula involving the area of the base and...
Curated Video
The Exciting World of Baseball: From Bases to Legends
"Baseball is a classic American sport played between two teams aiming to score runs by hitting a ball and running around four bases. With nine players on each team, the game combines strategy, skill, and athleticism. Legendary players...
Curated Video
The Human Genome Project: Mapping the Blueprint of Life
The Joint Genome Institute is part of the largest biomedical project ever undertaken, the Human Genome Project. This project aims to map and identify the 30,000 genes that make up the human blueprint. By determining the sequences of the...
Curated Video
The Human Genome Project: Mapping the Blueprint of Life
The Joint Genome Institute, funded by the US Department of Energy, is part of the largest biomedical project ever undertaken - the Human Genome Project. This project aims to map and identify the 30,000 genes that make up the human...
Curated Video
How are Proteins Made? - Transcription and Translation Explained #66
This video covers: - The two steps of protein synthesis: transcription and translation - Transcription is the production of mRNA, which is a copy of a gene - Translation is the production of a sequence of amino acids (a polypeptide)...
Curated Video
GCSE Chemistry - Acids and Bases #34
This video is covers what acids and bases are, what the pH scale is, how we measure pH with indicators and probes, and what neutralisation reactions are.
Curated Video
GCSE Biology - What is DNA? (Structure and Function of DNA) #65
This video covers: - The structure of DNA - What nucleotides are - Complementary base pairing - How genes code for proteins - The functions of proteins Exam board specific info: (probably useful for everyone though) AQA - Separate/triple...
Curated Video
GCSE Biology - What are DNA Mutations? #67
This video covers: - What genetic mutations are - What causes mutations e.g. carcinogens and harmful radiation - What the consequences can be - The 3 types of mutations: substitution, addition, deletion Exam board specific info: AQA -...
Brian McLogan
Tricky Logarithm Equation With Different Bases
In this video we are going to work on how to solve a logarithmic equation when we have two different bases that are different. We will use the properties of logarithms to help us out.