SciShow
Why Carbon Dating Might Be in Danger
Carbon dating transformed fields like archeology and paleontology, but its use might be in danger.
Bozeman Science
Renewable Energy
In this video Paul Andersen discusses the technology, advantages and disadvantages of six sources of renewable energy; biomass, hydroelectric, solar, geothermal wind, and hydrogen. He also explains how changes in the storage and flow of...
SciShow
Why Can't You Compost Meat?
Composting becomes more widespread and accessible all the time, keeping millions of tons of food waste from ending up in landfills every year. But there is one quirk of some composting programs that can be a little annoying: they don't...
SciShow
π 'N' Science
It's pi day! Hank explains why this irrational number is important to scientists, and discusses a bit of a controversy that surrounds it.
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
Mastering Composition: A Guide to Enhancing Your Photography Skills
New ReviewIn this video, the importance of understanding composition in photography is discussed to effectively direct the viewer's attention and highlight key elements in a photo. The video covers various composition rules such as the rule of...
Curated Video
Testing Graphing
New ReviewA video entitled "Testing Graphing" which shows how to use a graph to test if ratios are proportional.
Curated Video
Zeros
New ReviewA video entitled "Zeros" which shows how to find key features of a rational function in order to graph it.
Curated Video
Similar Figures Lengths
New ReviewA video entitled "Similar Figures Lengths" which shows how to use proportions to find side lengths in similar figures.
Curated Video
Unit Rate Problems
New ReviewYou will use unit rates to solve real-world application problems.
Curated Video
Recursive Formula Geometric
New ReviewA video entitled "Recursive Formula Geometric" that covers the adding numbers to a given sequence.
Curated Video
Portal 2 Co-op Walkthrough / Course 5 - Part 7 - Room 07/08
Howcast - Check out this Portal 2 Co-op walkthrough and beat Course 5 - Part 7 - Room 07/08 with this online demo.
Curated Video
How to Pick a Lacrosse Camp
Howcast - Learn how to pick a lacrosse camp from the pros at Game Breaker Lacrosse Camps in this Howcast video.
Curated Video
What Is the Eutectic Point when Soldering?
Howcast - Learn what the eutectic point is when soldering from expert Jeff Koskulics in this Howcast video.