Curated Video
Percentage yield
A measurement of the efficiency of a chemical reaction, calculated by dividing the actual amount of product by the theoretical maximum amount. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
Curated Video
How Long is a Metre?
The evolution of standard measurements from body parts to precise, universal measures. Maths - Measurement A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in...
Curated Video
Rounding: Snails vs Rockets
How accurately should speed be denoted? Would you round a snail's speed to the nearest whole unit? Or give a rocket's speed to five decimal places? Why accuracy, rounding and significant figures are useful. Maths - Accuracy And Proof A...
Curated Video
Ratios: The Maths of Baking
How would you bake the world's biggest cake? The same way as a small one... in ratio, but with increased measures. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show...
Curated Video
Measuring the Earth
The story of how a Persian scholar calculated the Earth's circumference over 1000 years ago, using only a mountain and trigonometry. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s...
Curated Video
Jai Singh
How Maharaja Jai Singh used scale to build and enhance the accuracy of his giant astronomical sundials. Maths - History Of Maths A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show...
Curated Video
Nightingale's Diagram
How Florence Nightingale's design of the pie chart saved millions of lives by demonstrating statistics in a simple, visual way. Maths - Statistics And Probability A Twig Math Film. Reinforce and extend the learning required by the...
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
Decimal Places: Photofinish
The story of a 60m sprint which, without decimals, would have resulted in a dead-heat. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action...
Curated Video
What Does the Internet Weigh?
What is the combined weight of all of the information on the internet? Mathematicians must work with the smallest particles of the Web to find out. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the...
Curated Video
Heptathlon
Heptathlon scoring involves converting distance, time or height measurements into a universal points system. The result? A complex scoring system that relies on algebra. Maths - Algebra A Twig Math Film. Reinforce and extend the learning...
Curated Video
Speed of the Earth
Even when you are standing still, you are moving through space at incredible speed. Find out how to calculate just how fast the Earth is moving. Maths - Accuracy And Proof A Twig Math Film. Reinforce and extend the learning required by...
Curated Video
Volume: Counting Stars
How many stars are there in the Universe? Astronomers calculate it the same way they would grains of sand on a beach... using volume. Maths - Measurement A Twig Math Film. Reinforce and extend the learning required by the curriculum....
Curated Video
Counting Crowds
When measuring very large data sets, like the crowd of 1.8 million who attended Obama's inauguration, often exact counting is impossible. Find out how statisticians use density samples to estimate their statistics. Maths - Accuracy And...
Curated Video
Weight
The force of gravity acting on a mass, measured in newtons. On Earth, gravity exerts a force of just under 10 newtons per kilogram. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Altitude
Height above sea level or other reference point on the Earth's surface. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
X-ray
Electromagnetic radiation present between ultraviolet and gamma rays on the electromagnetic spectrum, with wavelengths from about 0.01 to 10 nanometres. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using...
Weird History
Why Don't Americans Use the Metric System?
If you grew up in the United States, you probably learned the United States Customary System (USCS) for weights and measures. USCS terms like inches, feet, pounds, and miles are derived from the British Imperial System, steeped in a long...
Wonderscape
Understanding the Metric System: A Guide to Measuring Distance
Get a practical understanding of how the metric system measures distance, from meters to kilometers and beyond. This video breaks down the metric units of length, using everyday objects like guitars and baseball bats to visualize a...
Wonderscape
Measuring Mass with the Metric System: Grams to Metric Tons
Learn how the metric system simplifies measuring mass, from small objects like paper clips to large items like cars. This video covers the use of grams, kilograms, and metric tons, explaining the difference between mass and weight and...
Wonderscape
Decoding Measurement Systems: The Metric System Explained
Unpack the essentials of the metric and imperial systems of measurement and learn why a universal scientific language is crucial for global communication. This video delves into the origins of the metric system, its development in...
Curated Video
Pitch and Volume
Dr. Forrester explains the qualities of sound, pitch and volume, and how sound is created through vibrations.
Curated Video
Estimating Measurements
Mr. Addit reviews the basic units of measurement: the inch, the foot, and the yard. He explains how to estimate measurements by visualizing the lengths of familiar objects.
Curated Video
Making Metric Measurements
Mr. Addit provides information about measuring with the metric scale. He then measures length, perimeter, and area.