DescriptionSpace rocks: asteroids and comets; what happens when interstellar debris collides with Earth.

Charlie and Kirby look at storms, hurricanes and tornados; storm chasers in Colorado; the science behind weather.

Charlie and Kirby learn why shipwrecks happen; researching and exploring sunken treasures.

Charlie and Kirby explore how dogs were domesticated and how different breeds developed.

The seven senses that sharks have; getting up close and personal while cageless shark diving.

Animal headgear; how antlers and horns are different.

Learning the ropes to survival 101; food and water needs; how elements impact body temperature; tricks to tackling life in the great outdoors.

Animals adapt to life in the freezing-cold weather of Alaska.

Spiders, ladybugs, mayflies and other arthropods.

Invasive species are the new neighbors no one wants.

Humans' five senses; taste buds; jobs that use taste as their primary tool; human evolution.

Charlie and Kirby unlock the secrets behind roller coasters; the physics of extreme rides; thrill-ride design.

Kirby explores how to become a master falconer and meets some amazing birds of prey.

Charlie and Kirby explore caves in Virginia; spelunking and rappelling.

Charlie and Kirby are off to California to meet some of the most innovative minds on the planet: action sports athletes who have to train like athletes but think like engineers -- and Charlie and Kirby design and execute their own tricks.

A heist has been committed at HQ and now Charlie and Kirby are on the case!

Charlie and Kirby are heading off to NASA to unravel the weird world of ASTRONAUTS!

Charlie and Kirby head to NASA's mission control in Houston to learn how to train to become astronauts.

How recycling helps save trees; visit to a paper mill and a recycling plant.

With a soapbox derby coming up, Charlie and Kirby head to the racetrack for a crash course on race cars.

Charlie and Kirby learn all about planes on a flight in a historic biplane.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

Forensic scientists show Charlie and Kirby how fingerprints and footprints help solve crimes.

Charlie and Kirby visit the quietest room in the world to learn how to harness sound.

Description

DescriptionCharlie and Kirby head to Hawaii to discover the secrets of volcanoes.

Charlie and Kirby investigate various kinds of trees and climb giant sequoias that can grow to be over 250 feet tall.

Charlie and Kirby learn how to take care of Patrick's coral reef aquarium.

Charlie and Kirby explore different types of plants, from carnivorous plants that eat insects, to giant sea kelp that grow up to two feet per day.

Kirby and Charlie learn all about bees.

Kirby needs to build a contraption that will beat the school record in the egg-drop contest so she and Charlie get some advice from professional test engineers.

Charlie and Kirby learn all about electricity when their headquarters loses power.