SciShow
Why Do Leaves Change Color and Fall?
They’re pretty to look at, sure -- but the changing leaves you see in autumn are really a striking example of nature taking extreme measures to protect itself.
SciShow
Why Do Strawberries Have Eight Copies of Their Genes
Strawberries are delicious, but for a molecular biologist, they're also very difficult.
SciShow
Can Plants Get Sunburned?
Plants need sunlight to live, but they also need to block the sun's more harmful rays. Plants can't put on sunscreen or find shade, so how do they avoid getting a gnarly sunburn?
TED-Ed
TED-Ed: These animals are also plants ... wait, what? | Luka Seamus Wright
The species of slug known as Elysia chlorotica may not look like much— it resembles a bright green leaf— but it's one of the most extraordinary creatures on our planet. Living in marshes along the coast of North America, it can go about...
SciShow
These Frogs Hide Thanks to Transparent Skin
Hanging out in the trees of Central and South America are some frogs with pretty unusual coloration. Which is to say, parts of them have no color at all. Their bellies are completely see-through!
SciShow
How Plants Tell Time
Plants don’t have brains or muscles, and yet some of them can perform such feats as eating insects or following the sun. Scientists haven’t completely figured out how this happens, but they do have some pretty strong leads.
Bozeman Science
Light Absorption, Reflection, and Transmission
In this video Paul Andersen explains how light can be absorbed, reflected, or transmitted as it moves from one medium to another. The reflection of different wavelengths creates the perceived color of an object. Absorbed light is...
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...
SciShow
10 Fantastic Fungi Superpowers
Join Hank Green to learn ten weird, scary, and amazing things fungi can do! Chapters MAKE YOU HALLUCINATE 0:50 psychotherapy 1:43 Claviceps purpurea Credit: Dominique Jacquin 2:08 SALEM WITCH TRIALS 2:39 2 MAY CAUSE MASS HYSTERIA 2:49...
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...
Bozeman Science
Finding Stomata
Paul Andersen shows you how to find stomata in a dicot and monocot leaf using finger nail polish and transparent tape. A microscope is required to actually see the stomata.
SciShow Kids
How a Caterpillar Becomes a Butterfly
You’ve seen caterpillars, and you’ve seen butterflies. But do you know how a caterpillar becomes a butterfly? Jessi explains the wonder of metamorphosis!
Bozeman Science
AP Biology Lab 9: Transpiration
Paul Andersen starts by defining transpiration as evaporation off of a leaf. He then describes how a potometer can be used to measure the rate of transpiration in different environments.
MinuteEarth
The Real Reason Leaves Change Color in the Fall
Want to learn more about the topic in this week's video? Here are some keywords to get your googling started: Leaf senescence, chlorophyll, carotenoid, anthocyanin
Bozeman Science
Plant Nutrition and Transport
Paul Andersen explains how nutrients and water are transported in plants. He begins with a brief discussion of what nutrients are required by plants and where they get them. He shows you dermal, vascular and ground tissue in monocot...
Crash Course
Vascular Plants = Winning! - Crash Course Biology
Hank introduces us to one of the most diverse and important families in the tree of life - the vascular plants. These plants have found tremendous success and the their secret is also their defining trait: conductive tissues that can...
MinuteEarth
How Do Trees Survive Winter?
Humans can go inside or put on clothes, but trees spend winter naked in the cold. Why don't they all die?
SciShow Kids
Look Inside a Flower! Science Project for Kids
Squeaks has a Valentine's surprise for Jessi: a bouquet of flowers! Flowers are beautiful and they smell great, but did you know that flowers also do a very important job?
Curated Video
Unlocking the Mysteries of Autumn Leaves
The fall colors of New England is one of the most breathtaking natural spectacles on earth. Trillions of green leaves across New England transform into the brilliant hues of fall. But the reasons why are still a bit of a mystery.
Curated Video
Parts of the Plant: Leaves
Why are leaves commonly flat, spongy and strikingly green? Discover the different parts of a leaf and their function. Biology - Plants - Learning Points. A leaf is made of many layers sandwiched between tough outer layers. Gases enter...
Curated Video
Red-Eyed Tree Frog
Discover why the precarious choice of spawning location means this species' young must make a life-or-death decision as soon as they hatch. Biology - Animal Kingdom - Learning Points. The South American red-eyed tree frog lives in rivers...
Curated Video
Splash Tetras
Discover how splash tetras earned their name from the unusual way they lay their eggs. Biology - Animal Kingdom - Learning Points. Splash tetras lay their eggs on leaves. Male splash tetras find well-protected leaves by leaping out of...
Curated Video
Plant Transport
How does a tall tree draw water from its roots to its leaves? And how does food made in leaves reach the rest of a plant? Discover how plants transport resources via the xylem and phloem. Biology - Plants - Learning Points. Transpiration...
Curated Video
Carnivorous Plants
Not all plants exist simply on sunlight and water. Carnivorous plants eat meat. Discover how some of these carnivores trap and kill their prey. Biology - Plants - Learning Points. Some plants, often in harsh conditions, have adapted to...