Bozeman Science
PS4B - Electromagnetic Radiation
In this video Paul Andersen describes some of the properties of electromagnetic radiation. The electromagnetic spectrum varies by wavelength from radio waves to gamma rays. We only see a portion of the spectrum known as visible light. A...
Crash Course
Why Does Jakarta Flood So Easily? Crash Course Geography
Today we're going to talk about how and why floods happen both in spite of, and because of, us. Specifically, we'll take a closer look at the island of Java, and its largest city, Jakarta, and explain the factors that lead to serious...
SciShow Kids
What Causes Earthquakes?
Like it or not, the ground you’re walking on is always on the move! Join Jessi and Squeaks to learn how this movement can sometimes lead to earthquakes!
MinuteEarth
A Disease's Guide to World Domination
There's something surprising that helps determine how damaging a disease is: distance. ___________________________________________ To learn more, start your googling with these keywords: Direct transmission: occurs when a pathogen is...
TED Talks
TED: The hidden beauty of pollination | Louie Schwartzberg
Pollination: it's vital to life on Earth, but largely unseen by the human eye. Filmmaker Louie Schwartzberg shows us the intricate world of pollen and pollinators with gorgeous high-speed images from his film "Wings of Life," inspired by...
Bozeman Science
Signal Transmission and Gene Expression
Paul Andersen explains how signal transmission is used to alter both cellular function and gene expression. He uses the example of epinephrine release in humans and how it is used in the fight or flight response. Epinephrine causes liver...
TED Talks
Jennifer Vail: The science of friction -- and its surprising impact on our lives
Tribology: it's a funny-sounding word you might not have heard before, but it could change how you see and interact with the physical world, says mechanical engineer Jennifer Vail. Offering lessons from tribology -- the study of friction...
Bozeman Science
AP Biology Lab 1: Diffusion and Osmosis
Paul Andersen starts with a brief description of diffusion and osmosis. He then describes the diffusion demonstration and how molecules move over time. He then explains the concepts behind the osmosis lab and how potatoes are affected by...
Crash Course
Motion in a Straight Line: Crash Course Physics
In this, THE FIRST EPISODE of Crash Course Physics, your host Dr. Shini Somara introduces us to the ideas of motion in a straight line. She talks about displacement, acceleration, time, velocity, and the definition of acceleration. Also,...
Be Smart
Does The Moon Really Orbit The Earth?
According to Newton's law of gravitation, the sun should "pull" way harder on the moon than the Earth does. So does the moon actually orbit the Earth? Why?
TED-Ed
TED-ED: Are you a body with a mind or a mind with a body? - Maryam Alimardani
Our bodies _ the physical, biological parts of us - and our minds - the thinking, conscious aspects - have a complicated, tangled relationship. Which one primarily defines you or your self? Are you a body with a mind or a mind with a...
Bozeman Science
Energy Changing Processes
In this video Paul Andersen explains how energy can enter and leave a system. The amount of energy a substance can receive through heating or lose through cooling is measured using the specific heat capacity. Phase changing energy from...
SciShow
Altruism
Hank explains the evolutionary basis for altruistic behavior in animals, including vampire bats!
Bozeman Science
Doppler Effect
In this video Paul Andersen explains how the perceived frequency of a source depends on the motion of both the source and the observer. As a source approaches an observer the frequency will increase and as it moves away it will decrease....
Bozeman Science
Viruses
Paul Andersen describes the important characteristics of viruses. He starts with a brief description of origin theories. He then describes the two characteristics of all viruses; genetic information and protein coats. He also describes...
SciShow Kids
The Fastest Sled Ride Ever!
It snowed last night where Jessi and Squeaks live, so this morning they tried to go sledding, but they didn't end up going fast or very far. Can you help them figure out what they can do to get their sled zipping down the hill?
Bozeman Science
Spontaneous Processes
In this video Paul Andersen discriminates between spontaneous (or thermodynamically favored) processes and those that are not spontaneous. A spontaneous process requires no external energy source. If the enthalpy change in a reaction is...
Bozeman Science
Plants
Paul surveys the Kingdom Plantae. He begins with a brief description of the phylogeny of land plants. He then describes the defining characteristics of plants, including cell walls, embryophytes, alternation of generation and...
SciShow
What is Restless Leg Syndrome?
We all get a jittery after sitting still for too long. But some people experience an irresistible urge to move their legs, and it can seriously affect their daily lives.
Bozeman Science
Conservation of Electric Charge
In this video Paul Andersen explains how the conservation of charge applies to objects in a system. When a charged object induces charge or conducts charge to a neutral object the net total of charge will not change. Grounding allows...
Bozeman Science
Osmosis Demo
Mr. Andersen gives a brief description of osmosis. He explains how water moves from a hypotonic to a hypertonic solution across a semipermeable membrane. The video ends with a time-lapse demon in class.
TED Talks
TED: Europe's plan to become the first carbon-neutral continent | Ursula von der Leyen
With the ambitious goal of becoming the first carbon-neutral continent by 2050, the European Union has committed to creating a greener world for future generations. In this bold talk, Ursula von der Leyen, President of the European...
TED-Ed
TED-ED: How fast are you moving right now? - Tucker Hiatt
"How fast are you moving?" seems like an easy question, but it's actually quite complicated -- and perhaps best answered by another question: "Relative to what?" Even when you think you're standing still, the Earth is moving relative to...
Bozeman Science
Spacetime
In this video Paul Andersen explains how the dimensions of space and time are combined in relativistic mechanics. Gravity and velocity can affect both space and time according to Albert Einstein's Special Law of Relativity.