65 Episodes

Season 1

Episodes

All »
  • 65 episodes
    65 episodes
    • s1e65Crowded/Uncrowded: Human Survival/Controlling Densities
      February 15, 1980
    • s1e64Crowded/Uncrowded: Down Among the Atoms (Liquids & Solids)
      February 14, 1980
    • s1e63Crowded/Uncrowded: Contrasts in Densities of Materials
      February 13, 1980
    • s1e62Crowded/Uncrowded: Optimum Populations in Nature
      February 12, 1980
    • s1e61Crowded/Uncrowded: Human Crowding
      February 11, 1980
    • s1e60Big/Small: How Big is Big?
      February 29, 1980
    • s1e59Big/Small: Volume & Efficiency
      February 28, 1980
    • s1e58Big/Small: Dinoaurs
      February 27, 1980
    • s1e57Big/Small: Animal Habitats
      February 26, 1980
    • s1e56Big/Small: Animal Sizes/Scaling
      February 25, 1980
    • s1e55Surfaces: The Atmosphere—Skin of the Earth
      April 11, 1980
    • s1e54Surfaces: Surface of the Earth
      April 10, 1980
    • s1e53Surfaces: Surface Tension and Bubbles
      April 9, 1980
    • s1e52Surfaces: Shapes and Functions at the Surface
      April 8, 1980
    • s1e51Surfaces: Protection
      April 7, 1980
    • s1e50Order/Disorder: Sum of Its Parts
      April 4, 1980
    • s1e49Order/Disorder: Disordered
      April 3, 1980
    • s1e48Order/Disorder: Social Order
      April 2, 1980
    • s1e47Order/Disorder: The Body – An Ordered System
      April 1, 1980
    • s1e46Order/Disorder: Regular Patterns
      March 31, 1980
    • s1e45Near/Far: Knowing Where You Are
      March 7, 1980
    • s1e44Near/Far: Space Travel
      March 6, 1980
    • s1e43Near/Far: Mapping and Navigating Over Earth
      March 5, 1980
    • s1e42Near/Far: Mapping and Navigating Near Home
      March 4, 1980
    • s1e41Near/Far: Seeing Isn't Always Believing
      March 3, 1980
    • s1e40Light/Dark: Light Sources
      February 22, 1980
    • s1e39Light/Dark: The Eye
      February 21, 1980
    • s1e38Light/Dark: Electromagnetic Spectrum
      February 20, 1980
    • s1e37Light/Dark: Adaptation of Plants/Animals
      February 19, 1980
    • s1e36Light/Dark: The Sun
      February 18, 1980
    • s1e35Hot/Cold: Temperatures on Earth/In Space
      January 25, 1980
    • s1e34Hot/Cold: Heat and Work
      January 24, 1980
    • s1e33Hot/Cold: How Hot or Cold Can It Get?
      January 23, 1980
    • s1e32Hot/Cold: Animal and Plant Adaptations
      January 22, 1980
    • s1e31Hot/Cold: People's Temperatures
      January 21, 1980
    • s1e30Food/Fuel: The Sun Makes Everything Go
      February 8, 1980
    • s1e29Food/Fuel: Fueling Machines
      February 7, 1980
    • s1e28Food/Fuel: Growing and Processing Food
      February 6, 1980
    • s1e27Food/Fuel: Human Food
      February 5, 1980
    • s1e26Food/Fuel: Animal Food
      February 4, 1980
    • s1e25Communication: Feedback
      March 21, 1980
    • s1e24Communication with Other Species
      March 20, 1980
    • s1e23Communication: Machinery of Communication
      March 19, 1980
    • s1e22Communication: Animal Communication
      March 18, 1980
    • s1e21Communication: Human Communication
      March 17, 1980
    • s1e20Fast/Slow: Time and Time Again
      February 1, 1980
    • s1e19Fast/Slow: Speed and Racing
      February 7, 1980
    • s1e18Fast/Slow: Lifetimes
      January 30, 1980
    • s1e17Fast/Slow: Rhythms of Nature
      January 29, 1980
    • s1e16Fast/Slow: Speed Up, Slow Down
      January 28, 1980
    • s1e15Growth/Decay: Cycles Upon Cycles
      March 14, 1980
    • s1e14Growth/Decay: Human Cultures/Land Forms
      March 13, 1980
    • s1e13Growth/Decay: Decay
      March 12, 1980
    • s1e12Growth/Decay: Human Growth
      March 11, 1980
    • s1e11Growth/Decay: Sex and Seeds
      March 10, 1980
    • s1e10Forces: A Spectacle of Forces
      March 28, 1980
    • s1e9Forces and Machines
      March 27, 1980
    • s1e8Forces: Buoyancy and Gravity
      March 26, 1980
    • s1e7Forces and Fields
      March 25, 1980
    • s1e6Forces and Motion
      March 24, 1980
    • s1e5Noisy/Quiet: Range of Vibration
      January 18, 1980
    • s1e4Noisy/Quiet: Music
      January 17, 1980
    • s1e3Noisy/Quiet: How People & Animals Use Sound
      January 16, 1980
    • s1e2Noisy/Quiet: The Ear
      January 15, 1980
    • s1e1Noisy/Quiet: Production & Processing of Sound
      January 14, 1980