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Halloween

Halloween Chemistry
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Halloween Chemistry

A spooky, dry ice fog at your Halloween party. Jack-o-lanterns lit with green flames thanks to boric acid and methanol. And recipes for fake blood and flesh.

You'll find all those treats and more in this collection of games, activities, demonstrations, and articles with a decidedly ghoulish theme.

American Chemical Society
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Yes, You Really Can Smell Fear

Yes, You Really Can Smell Fear

While all sweat smells, scientists have found that some sweat screams anxiety to the world. Get the details. More...

Article
Discover Magazine
Code Fred: Survival Mode

Code Fred: Survival Mode

When you're frightened you're probably not thinking about your endocrine system. But you should be glad it's there. Help Fred's endocrine system get him out of the woods. More...

Game
Museum of Science and Industry
Einstein’s Brain

Einstein’s Brain

What made Einstein so smart? Watch the strange (but true!) story of how Einstein's brain was removed and studied after his death. What has it taught us about the biological roots of genius? More...

Video
NOVA/PBS
World’s Deadliest: Vampire Bats

World’s Deadliest: Vampire Bats

Not a Hollywood myth, vampire bats are real predators. With scalpel-sharp teeth, they can draw blood before waking their victim. More...

Video
National Geographic
Snail Zombies

Snail Zombies

What happens when a parasite hijacks a snail’s brain, turning it into a zombie? Well, it can’t be too good for the snail…. More...

Video
National Geographic
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Creaturefy Yourself

Creaturefy Yourself

What kind of cryptid can you become? Upload a photo of yourself and unleash your inner creature. More...

Interactive
Animal Planet
How Your Cat Is Making You Crazy

How Your Cat Is Making You Crazy

Some people think Jaroslav Flegr is a mad scientist. His research suggests a cat parasite can take control of human brains. He even says it happened to him! Now other scientists are taking a closer look. More...

Profile
The Atlantic
Invasion of the Giant Pythons

Invasion of the Giant Pythons

How did pythons from Southeast Asia take over the Florida Everglades? Turns out to be a case of "Snakes on a Plane." Watch the video. More...

Video
NATURE/PBS
Monsters of the Ancient Sea

Monsters of the Ancient Sea

Dinosaurs may have ruled the land, but the ancient seas were teaming with giant predators. Take a look at Henodus, Temnodontosaurus, and other "bad boys of the world's waters." More...

Interactive
National Geographic
Revealing the Revolting Beauty of Food Waste

Revealing the Revolting Beauty of Food Waste

That rotting sandwich in your locker may actually be art and science at its finest. Seriously. Check out these images of fermented and spoiled food. More...

Images
NPR
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The Mysterious Alien ‘Ghost Slug’

The Mysterious Alien ‘Ghost Slug’

Welsh earthworms beware: An all-white, eyeless “ghost” slug — which may have evolved in a cave system — preys on worms with its blade-like teeth before “sucking them in like spaghetti.” More...

Article
National Museum Wales
Why Do Things Sound Scary?

Why Do Things Sound Scary?

You're alive because you come from a very long line of people who are good at being scared. Take a look at what sounds cause "Instant fear" and why. More...

Video
It's Okay to Be Smart/PBS
Chemistry of Fear and Fright

Chemistry of Fear and Fright

When you're afraid, your heart races, you breathe faster, and you might start sweating. Find out more about the hormones that ready the body for "fight or flight." More...

Video
National Science Foundation
Creepy Crawlies

Creepy Crawlies

No trick: You spend your life surrounded by creepy crawly critters. Find out why it's a good thing — although maybe not a treat — that these critters share your body and house. More...

Article
NOVA/PBS
Experimenting with Makeup: What Puts the ‘Ick’ in Lipstick?

Experimenting with Makeup: What Puts the ‘Ick’ in Lipstick?

Do they really use whale puke in perfume? Are there beetles in lipstick? These students decided to find out. Warning: Their answers might disgust you! More...

Article
New York Times
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Super Silk Gene Goats

Super Silk Gene Goats

These goats have one spider silk gene in their genetic makeup. Watch to see how the gene gets inside the goat, and why this silk protein is so valuable. More...

Video
Science Channel
The Great Pumpkin

The Great Pumpkin

The challenge? Grow a one-ton (900kg) pumpkin. Selective breeding and controlling microbial life in the soil are just a few of the techniques these growers use. More...

Article
Smithsonian
Vampire Squid Turns Inside Out

Vampire Squid Turns Inside Out

Will human activity wipe out this cephalopod after nearly 300 million years? Watch it turn itself almost inside out. More...

Video
National Geographic

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