All Seasons

Season 1

• S01E01 Investigate!

  • PBS

• S01E02 Wheels

  • PBS

• S01E03 Animal Behavior

  • PBS

• S01E04 Water

  • PBS

• S01E05 Rocks

  • PBS

• S01E06 Flight

  • PBS

• S01E07 Weather

  • PBS

• S01E08 Technology

  • PBS

• S01E09 Plants

  • PBS

• S01E10 Air

  • PBS

• S01E11 Human Behavior

  • PBS

• S01E12 Space

  • PBS

• S01E13 Human Body

  • PBS

Season 2

• S02E01 Investigate!

  • January 16, 2003
  • PBS

• S02E02 Structures

  • January 23, 2003
  • PBS

• S02E03 Sports Science

  • January 30, 2003
  • PBS

• S02E04 Spinning

  • PBS

• S02E05 Propulsion

  • PBS

• S02E06 Human Body

  • PBS

• S02E07 Sound

  • PBS

• S02E08 Technology

  • PBS

• S02E09 Ecosystems

  • PBS

• S02E10 Underwater

  • PBS

• S02E11 Mammals

  • PBS

• S02E12 Earth Explorations

  • PBS

• S02E13 Creepy Crawlies

  • PBS

Season 3

• S03E01 Investigate!

  • January 15, 2004
  • PBS

• S03E02 Sports Science

  • January 22, 2004
  • PBS

• S03E03 Wind

  • January 29, 2004
  • PBS

• S03E04 Forensics

  • February 5, 2004
  • PBS

• S03E05 Engineering

  • February 12, 2004
  • PBS

• S03E06 Planet Earth

  • February 19, 2004
  • PBS

• S03E07 Animal Behavior

  • February 26, 2004
  • PBS

• S03E08 Speed

  • March 4, 2004
  • PBS

• S03E09 Health

  • March 11, 2004
  • PBS

• S03E10 Habitats

  • March 18, 2004
  • PBS

• S03E11 Games

  • March 25, 2004
  • PBS

• S03E12 Space

  • April 1, 2004
  • PBS

• S03E13 Dogs

  • April 8, 2004
  • PBS

Season 4

• S04E01 Energy

  • January 13, 2005
  • PBS

• S04E02 Engineering

  • January 20, 2005
  • PBS

• S04E03 Animal Behavior

  • January 27, 2005
  • PBS

• S04E04 Friction

  • February 3, 2005
  • PBS

• S04E05 Sound

  • February 10, 2005
  • PBS

• S04E06 Canines

  • February 17, 2005
  • PBS

• S04E07 Science at Play

  • February 24, 2005
  • PBS

• S04E08 Earth Systems

  • March 3, 2005
  • PBS

• S04E09 At the Zoo

  • March 10, 2005
  • PBS

• S04E10 Chemistry

  • March 17, 2005
  • PBS

• S04E11 Human Body

  • March 24, 2005
  • PBS

• S04E12 Mammals

  • March 31, 2005
  • PBS

• S04E13 Simple Machines

  • April 7, 2005
  • PBS

Season 5

• S05E01 Pittsburgh

  • April 6, 2006
  • PBS

• S05E02 Dallas and Ft. Worth

  • April 13, 2006
  • PBS

• S05E03 Los Angeles

  • April 20, 2006
  • PBS

• S05E04 Minneapolis and St. Paul

  • April 27, 2006
  • PBS

• S05E05 New York

  • May 4, 2006
  • PBS

• S05E06 Arizona

  • May 11, 2006
  • PBS

• S05E07 San Francisco

  • May 18, 2006
  • PBS

Season 6

• S06E01 Alaska

  • April 12, 2007
  • PBS

• S06E02 New Mexico

  • April 19, 2007
  • PBS

• S06E03 North Carolina

  • April 26, 2007
  • PBS

• S06E04 Montana and Yellowstone

  • May 3, 2007
  • PBS

• S06E05 New England

  • May 10, 2007
  • PBS

• S06E06 The Deep South

  • May 17, 2007
  • PBS

• S06E07 Hawaii

  • May 24, 2007
  • PBS

Season 7

• S07E01 Size and Scale

  • November 13, 2008
  • PBS

• S07E02 Structure of Matter

  • November 20, 2008
  • PBS

• S07E03 Small is Different

  • November 27, 2008
  • PBS

• S07E04 Forces at the Nanoscale

  • December 4, 2008
  • PBS

• S07E05 Applications

  • December 11, 2008
  • PBS

• S07E06 Nanotechnology and Society

  • December 18, 2008
  • PBS