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Periodic table
A systematic arrangement of the chemical elements. 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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Alkaline earth metal
A group of metals that form group two of 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 Films reinforce...
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African Elephants
The African elephant matriarch leads her herd hundreds of kilometres across the desert each year to find fresh food and water. Biology - Animal Kingdom - Learning Points. During the dry season, African elephants must travel hundreds of...
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Introduction to the Periodic Table
In 1869, Russian scientist Dmitri Mendeleev created the Periodic Table, ordering the naturally occurring elements by their structure and properties. His Periodic Table changed the course of Chemistry forever, and even predicted the...
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What is an Amphibian?
An introduction to amphibian life. How do amphibians differ from other land vertebrates? And why they are still so dependent on water to survive? Biology - Animal Kingdom - Learning Points. Amphibians follow a two-stage life cycle: a...
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What Are Stars?
What are stars made of? How are they born, how do they live, and how do they die? Physics - Our Solar System - Learning Points. Our nearest star is the Sun. A star is formed from a cloud of dust and gas, which shrinks under gravity and...
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What Makes Up the Electromagnetic Spectrum?
From radio waves to gamma rays, the electromagnetic spectrum is useful in different ways. How does this radiation differ and how can they be used? Physics - Waves - Learning Points. Electromagnetic radiation exists along a continuous...
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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...
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Life in the Freezer
From polar bears to emperor penguins, how animals and plants survive in some of the harshest habitats on Earth - the polar regions. Biology - Adaptation And Evolution - Learning Points. A host of different animals survive in the coldest...
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Variables: Dating By Number
Can algebra help a group of unlucky-in-love men find a date? See how manipulating the values in an algebraic equation can skew the outcome. Maths - Algebra A Twig Math Film. Reinforce and extend the learning required by the curriculum....
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The Birthday Paradox
How many people do you need to have in one room to be sure that two will share the same birthday? The answer is not as high as you might think... Maths - Algebra A Twig Math Film. Reinforce and extend the learning required by the...
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The Noble Gases
The noble gases were one of the last groups of elements to be discovered. From helium balloons to light bulbs, these gases have many uses in the world around us. Chemistry - Periodic Table - Learning Points. The noble gases are found in...
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Transition Metals
Transition metals are the largest group in the periodic table. Find out what similarities they share, and how we make use of these metals. Chemistry - Periodic Table - Learning Points. Transition metals are found as a block in the middle...
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Molecule
Two or more atoms held strongly together by covalent bonds. 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...
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Reactivity Series: Comparing the Reactivity of Group 1 and Group 2 Metals
We compare the reactivity of Group 1 and Group 2 metals. We add sodium and then potassium to water. We observe the reactions. Next we add magnesium and then calcium to hydrochloric acid and observe the reactions. The results let us put...
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Atomic Structure
What does the Periodic Table tell us about the elements, their properties and behaviours? And why does the atomic number define each element? Chemistry - Periodic Table - Learning Points. The structure of the atom reveals why the...
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The Halogens
Halogens are hazardous to human life, yet they can also be very useful. How do they react when they meet other elements? Chemistry - Periodic Table - Learning Points. The halogens are the elements in Group 7 of the periodic table. The...
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How Did Fish Evolve?
Journey through the evolution of fish, from the first vertebrate to the fish species that would eventually evolve to crawl onto land. Biology - Animal Kingdom - Learning Points. The first fish was called Haikouichthys, and it evolved in...
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Can We Control Pain?
Watch the extraordinary outcome of a laboratory experiment in which participants are given electric shocks. How does anticipation of pain or the use of placebos affect the pain the participants feel? Biology - Being Human - Learning...
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Animal groups
By looking for things that are the same, we can group animals! Living things - Animal kingdom - Grouping animals Learning Points We can put animals into groups by looking for similarities and differences. Vertebrates can be divided into...
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Invertebrates
More common than you think ... but what exactly is an invertebrate? Life processes - Variation and classification - Invertebrates Learning Points Invertebrates are animals that have no backbone. Invertebrate groups are insects, arachnids...
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New arrival at the zoo
A mystery animal has arrived at the zoo. How do we decide where to house it? Life processes - Variation and classification - Classification keys Learning Points Classification keys can be used to identify an unknown animal. A Twig...
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Evolution - Life Connections
Find out how earwigs, elephants, poppies and flamingos are all related! Life processes - Living things in their environments - Evolution Learning Points All life descended from a simple organism. Species adapt to their environments....
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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...