Bozeman Science
Photosynthesis Lab Walkthrough
Mr. Andersen shows you how to sink leaf chads in preparation for the AP Biology photosynthesis lab. An empty syringe is used to remove gas from the leaves before the lab. As the chloroplasts absorb light they produce oxygen bubbles which...
SciShow
6 'Undetectable' Poisons (and How to Detect Them)
Poisoning has always been a popular method of getting rid of one’s enemies, but is there actually a “perfect” poison capable of being completely undetectable? Here are 6 of the poisons that have confounded doctors throughout history!
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SciShow
This Is Not What an Atom Looks Like
What does an atom look like? Throughout history scientists and philosophers have attempted to answer this question. As a result, they've come up with some useful models for understanding the building blocks of our universe.
TED-Ed
TED-Ed: Making sense of how life fits together - Bobbi Seleski
From something as miniscule as a cell to the biosphere we all call home, living things fit together in numerous interesting ways. Bobbi Seleski catalogs biology from our body and beyond, tracking how unicellular organisms, tissues,...
Crash Course Kids
Let's Build a City
So, we've built a lot of things over the last year and we've become awesome engineers in the process. But now it's time for a real challenge. Let's build a city! That's right, you heard me! In this episode, Sabrina shows us what we need...
TED-Ed
TED-ED: How many ways can you arrange a deck of cards? - Yannay Khaikin
One deck. Fifty-two cards. How many arrangements? Let's put it this way: Any time you pick up a well shuffled deck, you are almost certainly holding an arrangement of cards that has never before existed and might not exist again. Yannay...
SciShow
Why You See Monsters in the Mirror
Staring into the mirror in a dark room can play some nasty tricks on your brain. Like many illusions, this can tell us about how your brain processes images.
SciShow
What's the Fastest Speed a Person Could Run
World-class sprinters just keep getting faster, with some running over 40 kilometers per hour! That kind of makes you wonder… how much faster can humans get?
Bozeman Science
LS2A - Interdependent Relationships in Ecosystems
In this video Paul Andersen explains the important relationships that exist in ecosystems. He starts by delineating between organisms and their environment. He explains how food webs can be used to show energy and matter flow in a...
Bozeman Science
Scalars and Vectors
Mr. Andersen explains the differences between scalar and vectors quantities. He also uses a demonstration to show the importance of vectors and vector addition.
Bozeman Science
ESS2B - Plate Tectonics and Large-Scale System Interactions
In this video Paul Andersen explains how plate tectonics explains the large-scale system interactions on our planet. Large plates float on the mantle and interact to form the major landforms on the planet. Evidence for plate tectonics...
SciShow Kids
What’s the Difference Between Fruits and Vegetables?
Have you ever wondered how to tell fruits and vegetables apart? Learn how to with Jessi and Squeaks!
TED Talks
Matt Walker: Sleep is your superpower
Sleep is your life-support system and Mother Nature's best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when you get...
Bozeman Science
Probability in Genetics: Multiplication and Addition Rules
Paul Andersen shows you how to use the rules of multiplication and addition to correctly solve genetics problems. The rule of multiplication can be applied to independent events in sequence. The rule of addition can be applied to...
TED Talks
Katie Hood: The difference between healthy and unhealthy love
In a talk about understanding and practicing the art of healthy relationships, Katie Hood reveals the five signs you might be in an unhealthy relationship -- with a romantic partner, a friend, a family member -- and shares the things you...
SciShow Kids
All About Your Body! | Human Body Compilation
The human body is a complicated thing! To be able to move, fight off diseases, and even see colors, lots of different systems and organs need to work together. Squeaks' robot body is pretty complicated, too, so Jessi has put together a...
Crash Course
Tricksters: An Introduction: Crash Course World Mythology 20
This week, Mike introduces you to Tricksters, starting with Anansi, the West African trickster god who is also sometimes a spider. Tricksters are, well, tricky. They're wise and foolish, they're promiscuous and amoral, but in a lot of...
SciShow Kids
Why Does Bread Have Holes In It? | SciShow Kids
Mister Brown and Squeaks are making bread, and they're going to need a tiny little helper to get the job done: a fungus called yeast!
Disciplinary Core Idea:
PS1.B: Chemical Reactions - Heating or cooling a substance may cause changes...
SciShow
Do Zombies Float or Sink?
If you’re trying to figure out where to plan on sheltering during the zombie apocalypse, it’s essential to know whether zombies sink or float!
SciShow Kids
How Do Squirrels Find the Food they Hide? | How Animals Prepare for Winter | SciShow Kids
Squirrels eat a lot of things that are pretty tricky to find in the winter, like nuts and berries. Luckily for them, they have lots of clever ways to store up food to last them through the cold parts of the year!
PBS
That Time It Rained for Two Million Years
At the beginning of the Triassic Period, with the continents locked together from pole-to-pole in the supercontinent of Pangea, the world is hot, flat, and very, very dry. But then 234 million years ago, the climate suddenly changed for...
Bozeman Science
Abiogenesis
Paul Andersen describes how life could have formed on our planet through natural processes. The progression from monomers, to polymers, to protocells and finally to cells is described. The Miller-Urey experiment is described in detail as...
TED-Ed
TED-Ed: Where do genes come from? - Carl Zimmer
When life emerged on Earth about 4 billion years ago, the earliest microbes had a set of basic genes that succeeded in keeping them alive. In the age of humans and other large organisms, there are a lot more genes to go around. Where did...
Crash Course Kids
Land and Water
Remember Sol, the closest star to Earth? We like to call it The Sun and we haven't talked about it in a little while. One interesting thing about the energy we get from the sun is that it's not absorbed the same way by different...