Mark Rober's CrunchLabs

Acid vs. Lava Destruction Test

In a scientific face-off, Mark goes head-to-head with NileRed and Kevin the Backyard Scientist to find out which is more

Backyard Squirrel Obstacle Course

To stop the sneaky squirrels from raiding his bird feeder, Mark builds a challenging eight-part obstacle course in his b

World's Largest Devil's Toothpaste

Mark throws an epic birthday party for a deserving teen, complete with record-breaking devil's toothpaste experiment - t

Beating Carnival Scams With Science

Step right up and learn which carnival games are actually winnable and which ones aren't, courtesy of Mark... and a frie

My Domino Robot Broke A World Record

Mark's robot Dom is really good at setting up dominos. But can he fill a warehouse with a mural made up od more than 100

Engineers vs. Extreme Hide & Seek

Mark has 30 minutes to find all nine product designers hidden inside the CrunchLabs warehouse - and they're allowed to f

My Experience Building The Mars Rover

In honor of the historic Perseverance Mars rover landing, Mark talks to some of his old friends at NASA and suits up to

Lava vs Laser Destruction Test

What's the most destructive substance on Earth? Lava's the reigning champ - but how do lasers stack up? Mark and his fri

Backyard Squirrel 2.0 - Bank Heist

Mark ups his backyard obstacle course game to keep four thieving squirrels away from a bank vault full of birdseed and a

Building a Liquid Sand Hot Tub

With the right amount of forced air, a hot tub filled with sand can look like a bubbling pot of soup. But how? Mark brea

This Ball Is Impossible to Hit

Mark uses the magic of engineering to level the playing field in a stacked competition against the world's greatest wiff

Vortex Cannon vs Drone

Mark explores the possibilities of anti-drone defense technologies with a crew of backyard YouTube engineers... and the

Glitter Bomb 1.0 vs Porch Pirates

Stolen packages? Not so fast. Mark builds the original "Glitter Bomb" trap to combat porch pirates-and really make them

Engineers vs Food Robots

From cereal and milk to spaghetti and meatballs: Things get messy when the CrunchLabs team cooks up new ways to make Mar

Mark Rober vs Ninja Kidz

It's not just the Ninja Kidz - it's the whole Ninja Fam! And Mark's challenging them all to a silly series of "Minute to

Engineers vs Custom Go Kart Racing

CrunchLabs product designers get 24 hours to build and race their own custom go-karts incorporating engineering know-how

Episode 10

Moving Train Jump Test

To answer an assortment of science puzzles, Mark takes his experiments to the next level — on top of a moving train an

Lasers vs. Lightning Destruction Test

Now it's lasers vs. lightning in a showdown to find out which one is more destructive. With a series of tests, the Crunc

Glitter Bomb 2.0 vs. Porch Pirates

Actor Macaulay Culkin joins Mark as he unleashes upgraded bait packages full of glitter — and stinky fart spray — to

How to Escape a Police Sniffing Dog

Mark's running for his life while being hunted down by an expert tracking dog. Can he engineer some distractions to thro

Backyard Squirrel Olympics 3.0

Let the games begin! From a high jump to a spinning balance beam, Mark's set up a series of backyard battles for squirre

I Built My Own Space Satellite

One small step in space, one giant leap for taking a selfie. Mark preps a satellite to snap pics of the Earth photobombi

I Spent $5M So You Can Go to Space

Get ready for liftoff! After three years of work and spending millions of dollars, can Mark ensure his selfie-taking sat