3-2-1 Contact

Season 1 • 64 Episodes

1. Noisy/Quiet: Production & Processing of Sound

2. Noisy/Quiet: The Ear

3. Noisy/Quiet: How People & Animals Use Sound

4. Noisy/Quiet: Music

5. Noisy/Quiet: Range of Vibration

6. Forces and Motion

7. Forces and Fields

8. Forces: Buoyancy and Gravity

9. Forces and Machines

10. Forces: A Spectacle of Forces

11. Growth/Decay: Sex and Seeds

12. Growth/Decay: Human Growth

13. Growth/Decay: Decay

14. Growth/Decay: Human Cultures/Land Forms

15. Growth/Decay: Cycles Upon Cycles

16. Fast/Slow: Speed Up, Slow Down

17. Fast/Slow: Rhythms of Nature

18. Fast/Slow: Lifetimes

19. Fast/Slow: Speed and Racing

20. Fast/Slow: Time and Time Again

21. Communication: Human Communication

22. Communication: Animal Communication

23. Communication: Machinery of Communication

24. Communication with Other Species

25. Communication: Feedback

26. Food/Fuel: Animal Food

27. Food/Fuel: Human Food

28. Food/Fuel: Growing and Processing Food

29. Food/Fuel: Fueling Machines

30. Food/Fuel: The Sun Makes Everything Go

31. Hot/Cold: People's Temperatures

32. Hot/Cold: Animal and Plant Adaptations

33. Hot/Cold: How Hot or Cold Can It Get?

34. Hot/Cold: Heat and Work

35. Hot/Cold: Temperatures on Earth/In Space

36. Light/Dark: The Sun

38. Light/Dark: Electromagnetic Spectrum

39. Light/Dark: The Eye

40. Light/Dark: Light Sources

41. Near/Far: Seeing Isn't Always Believing

42. Near/Far: Mapping and Navigating Near Home

43. Near/Far: Mapping and Navigating Over Earth

44. Near/Far: Space Travel

45. Near/Far: Knowing Where You Are

46. Order/Disorder: Regular Patterns

47. Order/Disorder: The Body â€“ An Ordered System

48. Order/Disorder: Social Order

49. Order/Disorder: Disordered

50. Order/Disorder: Sum of Its Parts

51. Surfaces: Protection

52. Surfaces: Shapes and Functions at the Surface

53. Surfaces: Surface Tension and Bubbles

54. Surfaces: Surface of the Earth

55. Surfaces: The Atmosphere

56. Big/Small: Animal Sizes/Scaling

57. Big/Small: Animal Habitats

58. Big/Small: Dinoaurs

59. Big/Small: Volume & Efficiency

60. Big/Small: How Big is Big?

61. Crowded/Uncrowded: Human Crowding

62. Crowded/Uncrowded: Optimum Populations in Nature

63. Crowded/Uncrowded: Contrasts in Densities of Materials

64. Crowded/Uncrowded: Down Among the Atoms (Liquids & Solids)

65. Crowded/Uncrowded: Human Survival/Controlling Densities