Bozeman Science
Thinking in Proportion: Level 5 - Proportional Relationships
In this video Paul Andersen shows conceptual thinking in a mini-lesson on proportional relationships. TERMS Quantities - the amount (or number) of a thing Proportional relationship - relation of one dataset to another dataset Directly -...
TED-Ed
TED-ED: Making sense of irrational numbers - Ganesh Pai
Like many heroes of Greek myths, the philosopher Hippasus was rumored to have been mortally punished by the gods. But what was his crime? Did he murder guests or disrupt a sacred ritual? No, Hippasus's transgression was mathematically...
Bozeman Science
AP Biology Lab 4: Plant Pigments and Photosynthesis
Paul Andersen explains how pigments can be separated using chromatography. He shows how you can calculate the Rf value for each pigment. He then explains how you can measure the rate of photosynthesis using leaf chads and water...
TED-Ed
TED-Ed: Can you solve the Alice in Wonderland riddle? | Alex Gendler
After many adventures in Wonderland, Alice has once again found herself in the court of the temperamental Queen of Hearts. She's about to pass through the garden undetected, when she overhears the king and queen arguing that 64 is the...
SciShow
The Fibonacci Sequence: Nature's Code
Hank introduces us to the most beautiful numbers in nature - the Fibonacci sequence.
Bozeman Science
The Reaction Quotient
In this video Paul Andersen explains how the reaction quotient is used to determine the progress of a reversible reaction. The reaction quotient (Q) is the ratio of the concentration of products to the concentration of reactants. The...
3Blue1Brown
How pi was almost 6.283185...
A bit of the history behind how we came to use the symbol "pi" to represent what it does today, and how Euler used it to refer to several different circle constants.
Bozeman Science
A Beginner's Guide to Punnett Squares
Paul Andersen introduces the Punnett Square as a a powerful tool in genetic analysis. He tries to address major misconceptions that students have when use a Punnett Square. He gives a number of examples of monohybrid crosses and one...
TED-Ed
TED-Ed: Sajan Saini: How light technology is changing medicine
It's an increasingly common sight in hospitals around the world: a nurse measures our height, weight, blood pressure, and attaches a glowing plastic clip to our finger. Suddenly, a digital screen reads out the oxygen level in our...
Bozeman Science
Elements and Molecules
In this video Paul Andersen explains how elements and molecules are made of atoms. In a pure sample of a pure substance the average mass remains the same. If more than one atom is found in a molecule the ration of average masses remains...
Curated Video
The Economic Cost of Longevity: Challenges and Strategies for Governments
This video discusses the economic implications of increasing longevity and the challenges it poses for governments and economies. It explores the need for healthcare, senior care facilities, and pension benefits for an aging population,...
Science Buddies
The Physics of Bouncing a Ball | Science Project
In this physics science fair project, students will investigate the rebound height limits and linearity of dropped bouncy balls.
Curated Video
What is Value Engineering? Project Management in Under 5
As a Project Manager, you will one day find yourself in a meeting when someone makes the suggestion: 'I think we need to do some Value Engineering.' It's a necessary part of many projects. So, what is Value Engineering?
Curated Video
What is Value? ...or Project Value?
Value has come right up the Project Management agenda recently, with pride of place in 2021’s 7th edition of the PMBOK guide. But it has always been an important concept. The problem is that defining it is difficult. So, what is Value?...
Curated Video
Mass spectrometer
An instrument that analyses characteristics of atoms and molecules, including their mass. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
Curated Video
Refractive index
A measure of the speed of light in a medium, defined as the ratio of the speed of light in a vacuum, to its speed in the medium under consideration. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using...
Curated Video
Empirical formula
A formula that shows the simplest whole number ratio of atoms in a compound. 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
Atomic weight
The average mass of atoms of an element. 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 concepts and key...
Curated Video
The Fibonacci Sequence
How Fibonacci came up with his sequence, and how it is repeated throughout nature, from flower's petals to snails' shells – and how it has inspired the financial and computing industries. Maths - Number A Twig Math Film. Reinforce and...
Curated Video
Levers, Wheels, Pulleys
There are only six basic types of machine. Discover more about levers, wheels and pulleys: what are they and why are they useful? Physics - Forces - Learning Points. Archimedes designed simple machines to move and lift objects. The...
Curated Video
Maths and the Mona Lisa
See the Golden Ratio in the Mona Lisa and how it has contributed to the painting becoming the most viewed artwork in the world. Maths - Measurement A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s...
Curated Video
Laws of Thermodynamics
Find out what these two principal laws explain about the way energy can and cannot be used throughout the entire Universe. Physics - Energy And Radioactivity - Learning Points. The 1st law of thermodynamics states that energy can neither...
Curated Video
Ratios: Currency Exchange
Why are currencies worth different values, and how do you calculate the cross-currency value of your money? Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract...