• S 1: Ep 50 Order/Disorder: Sum of Its Parts
    4/4/80
  • S 1: Ep 49 Order/Disorder: Disordered
    4/3/80
  • S 1: Ep 48 Order/Disorder: Social Order
    4/2/80
  • S 1: Ep 47 Order/Disorder: The Body – An Ordered System
    4/1/80
  • S 1: Ep 46 Order/Disorder: Regular Patterns
    3/31/80
  • S 1: Ep 10 Forces: A Spectacle of Forces
    3/28/80
  • S 1: Ep 9 Forces and Machines
    3/27/80
  • S 1: Ep 8 Forces: Buoyancy and Gravity
    3/26/80
  • S 1: Ep 7 Forces and Fields
    3/25/80
  • S 1: Ep 6 Forces and Motion
    3/24/80
  • S 1: Ep 25 Communication: Feedback
    3/21/80
  • S 1: Ep 24 Communication with Other Species
    3/20/80
  • S 1: Ep 23 Communication: Machinery of Communication
    3/19/80
  • S 1: Ep 22 Communication: Animal Communication
    3/18/80
  • S 1: Ep 21 Communication: Human Communication
    3/17/80
  • S 1: Ep 15 Growth/Decay: Cycles Upon Cycles
    3/14/80
  • S 1: Ep 14 Growth/Decay: Human Cultures/Land Forms
    3/13/80
  • S 1: Ep 13 Growth/Decay: Decay
    3/12/80
  • S 1: Ep 12 Growth/Decay: Human Growth
    3/11/80
  • S 1: Ep 11 Growth/Decay: Sex and Seeds
    3/10/80
  • S 1: Ep 45 Near/Far: Knowing Where You Are
    3/7/80
  • S 1: Ep 44 Near/Far: Space Travel
    3/6/80
  • S 1: Ep 43 Near/Far: Mapping and Navigating Over Earth
    3/5/80
  • S 1: Ep 42 Near/Far: Mapping and Navigating Near Home
    3/4/80
  • S 1: Ep 41 Near/Far: Seeing Isn't Always Believing
    3/3/80
  • S 1: Ep 60 Big/Small: How Big is Big?
    2/29/80
  • S 1: Ep 59 Big/Small: Volume & Efficiency
    2/28/80
  • S 1: Ep 58 Big/Small: Dinoaurs
    2/27/80
  • S 1: Ep 57 Big/Small: Animal Habitats
    2/26/80
  • S 1: Ep 56 Big/Small: Animal Sizes/Scaling
    2/25/80
  • S 1: Ep 40 Light/Dark: Light Sources
    2/22/80
  • S 1: Ep 39 Light/Dark: The Eye
    2/21/80
  • S 1: Ep 38 Light/Dark: Electromagnetic Spectrum
    2/20/80
  • S 1: Ep 37 Light/Dark: Adaptation of Plants/Animals
    2/19/80
  • S 1: Ep 36 Light/Dark: The Sun
    2/18/80
  • S 1: Ep 65 Crowded/Uncrowded: Human Survival/Controlling Densities
    2/15/80
  • S 1: Ep 64 Crowded/Uncrowded: Down Among the Atoms (Liquids & Solids)
    2/14/80
  • S 1: Ep 63 Crowded/Uncrowded: Contrasts in Densities of Materials
    2/13/80
  • S 1: Ep 62 Crowded/Uncrowded: Optimum Populations in Nature
    2/12/80
  • S 1: Ep 61 Crowded/Uncrowded: Human Crowding
    2/11/80
  • S 1: Ep 30 Food/Fuel: The Sun Makes Everything Go
    2/8/80
  • S 1: Ep 29 Food/Fuel: Fueling Machines
    2/7/80
  • S 1: Ep 19 Fast/Slow: Speed and Racing
    2/7/80
  • S 1: Ep 28 Food/Fuel: Growing and Processing Food
    2/6/80
  • S 1: Ep 27 Food/Fuel: Human Food
    2/5/80
  • S 1: Ep 26 Food/Fuel: Animal Food
    2/4/80
  • S 1: Ep 20 Fast/Slow: Time and Time Again
    2/1/80
  • S 1: Ep 18 Fast/Slow: Lifetimes
    1/30/80
  • S 1: Ep 17 Fast/Slow: Rhythms of Nature
    1/29/80
  • S 1: Ep 16 Fast/Slow: Speed Up, Slow Down
    1/28/80
  • S 1: Ep 35 Hot/Cold: Temperatures on Earth/In Space
    1/25/80
  • S 1: Ep 34 Hot/Cold: Heat and Work
    1/24/80
  • S 1: Ep 33 Hot/Cold: How Hot or Cold Can It Get?
    1/23/80
  • S 1: Ep 32 Hot/Cold: Animal and Plant Adaptations
    1/22/80
  • S 1: Ep 31 Hot/Cold: People's Temperatures
    1/21/80
  • S 1: Ep 5 Noisy/Quiet: Range of Vibration
    1/18/80
  • S 1: Ep 4 Noisy/Quiet: Music
    1/17/80
  • S 1: Ep 3 Noisy/Quiet: How People & Animals Use Sound
    1/16/80
  • S 1: Ep 2 Noisy/Quiet: The Ear
    1/15/80
  • S 1: Ep 1 Noisy/Quiet: Production & Processing of Sound
    1/14/80