Season
Episode
- Episode 1: Noisy/Quiet: Production & Processing of Sound
- Episode 2: Noisy/Quiet: The Ear
- Episode 3: Noisy/Quiet: How People & Animals Use Sound
- Episode 4: Noisy/Quiet: Music
- Episode 5: Noisy/Quiet: Range of Vibration
- Episode 6: Forces and Motion
- Episode 7: Forces and Fields
- Episode 8: Forces: Buoyancy and Gravity
- Episode 9: Forces and Machines
- Episode 10: Forces: A Spectacle of Forces
- Episode 11: Growth/Decay: Sex and Seeds
- Episode 12: Growth/Decay: Human Growth
- Episode 13: Growth/Decay: Decay
- Episode 14: Growth/Decay: Human Cultures/Land Forms
- Episode 15: Growth/Decay: Cycles Upon Cycles
- Episode 16: Fast/Slow: Speed Up, Slow Down
- Episode 17: Fast/Slow: Rhythms of Nature
- Episode 18: Fast/Slow: Lifetimes
- Episode 19: Fast/Slow: Speed and Racing
- Episode 20: Fast/Slow: Time and Time Again
- Episode 21: Communication: Human Communication
- Episode 22: Communication: Animal Communication
- Episode 23: Communication: Machinery of Communication
- Episode 24: Communication with Other Species
- Episode 25: Communication: Feedback
- Episode 26: Food/Fuel: Animal Food
- Episode 27: Food/Fuel: Human Food
- Episode 28: Food/Fuel: Growing and Processing Food
- Episode 29: Food/Fuel: Fueling Machines
- Episode 30: Food/Fuel: The Sun Makes Everything Go
- Episode 31: Hot/Cold: People's Temperatures
- Episode 32: Hot/Cold: Animal and Plant Adaptations
- Episode 33: Hot/Cold: How Hot or Cold Can It Get?
- Episode 34: Hot/Cold: Heat and Work
- Episode 35: Hot/Cold: Temperatures on Earth/In Space
- Episode 36: Light/Dark: The Sun
- Episode 38: Light/Dark: Electromagnetic Spectrum
- Episode 39: Light/Dark: The Eye
- Episode 40: Light/Dark: Light Sources
- Episode 41: Near/Far: Seeing Isn't Always Believing
- Episode 42: Near/Far: Mapping and Navigating Near Home
- Episode 43: Near/Far: Mapping and Navigating Over Earth
- Episode 44: Near/Far: Space Travel
- Episode 45: Near/Far: Knowing Where You Are
- Episode 46: Order/Disorder: Regular Patterns
- Episode 47: Order/Disorder: The Body – An Ordered System
- Episode 48: Order/Disorder: Social Order
- Episode 49: Order/Disorder: Disordered
- Episode 50: Order/Disorder: Sum of Its Parts
- Episode 51: Surfaces: Protection
- Episode 52: Surfaces: Shapes and Functions at the Surface
- Episode 53: Surfaces: Surface Tension and Bubbles
- Episode 54: Surfaces: Surface of the Earth
- Episode 55: Surfaces: The Atmosphere
- Episode 56: Big/Small: Animal Sizes/Scaling
- Episode 57: Big/Small: Animal Habitats
- Episode 58: Big/Small: Dinoaurs
- Episode 59: Big/Small: Volume & Efficiency
- Episode 60: Big/Small: How Big is Big?
- Episode 61: Crowded/Uncrowded: Human Crowding
- Episode 62: Crowded/Uncrowded: Optimum Populations in Nature
- Episode 63: Crowded/Uncrowded: Contrasts in Densities of Materials
- Episode 64: Crowded/Uncrowded: Down Among the Atoms (Liquids & Solids)
- Episode 65: Crowded/Uncrowded: Human Survival/Controlling Densities
3-2-1 Contact Season 1 Growth/Decay: Cycles Upon Cycles
3-2-1 Contact is an American science educational television show that aired on PBS from 1980 to 1988, and an adjoining children's magazine. The show, a production of the Children's Television Workshop, teaches scientific principles and their applications. Dr. Edward G. Atkins, who was responsible for much of the scientific content of the show, felt that the TV program wouldn't replace a classroom but would open the viewers to ask questions about the scientific purpose of things.
