3-2-1 Contact: Crowded/Uncrowded: Contrasts in Densities of Materials
S1 E63
1980
6.7
Trini pilots around New York City in the Goodyear blimp. Lisa gets to ride a hot-air balloon. The Bloodhound Gang gets an eyesight-full in Part Two of ""The Case of the Cackling Ghost."" (Concludes in next episode.)
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Episodes
E1
Noisy/Quiet: Production & Processing of Sound
30m★0.0
E2
Noisy/Quiet: The Ear
30m★0.0
E3
Noisy/Quiet: How People & Animals Use Sound
30m★0.0
E4
Noisy/Quiet: Music
30m★0.0
E5
Noisy/Quiet: Range of Vibration
30m★0.0
E6
Forces and Motion
30m★0.0
E7
Forces and Fields
30m★0.0
E8
Forces: Buoyancy and Gravity
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E9
Forces and Machines
30m★0.0
E10
Forces: A Spectacle of Forces
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E11
Growth/Decay: Sex and Seeds
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E12
Growth/Decay: Human Growth
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E13
Growth/Decay: Decay
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E14
Growth/Decay: Human Cultures/Land Forms
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E15
Growth/Decay: Cycles Upon Cycles
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E16
Fast/Slow: Speed Up, Slow Down
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E17
Fast/Slow: Rhythms of Nature
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E18
Fast/Slow: Lifetimes
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E19
Fast/Slow: Speed and Racing
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E20
Fast/Slow: Time and Time Again
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E21
Communication: Human Communication
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E22
Communication: Animal Communication
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E23
Communication: Machinery of Communication
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E24
Communication with Other Species
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E25
Communication: Feedback
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E26
Food/Fuel: Animal Food
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E27
Food/Fuel: Human Food
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E28
Food/Fuel: Growing and Processing Food
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E29
Food/Fuel: Fueling Machines
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E30
Food/Fuel: The Sun Makes Everything Go
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E31
Hot/Cold: People's Temperatures
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E32
Hot/Cold: Animal and Plant Adaptations
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E33
Hot/Cold: How Hot or Cold Can It Get?
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E34
Hot/Cold: Heat and Work
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E35
Hot/Cold: Temperatures on Earth/In Space
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E36
Light/Dark: The Sun
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E38
Light/Dark: Electromagnetic Spectrum
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E39
Light/Dark: The Eye
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E40
Light/Dark: Light Sources
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E41
Near/Far: Seeing Isn't Always Believing
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E42
Near/Far: Mapping and Navigating Near Home
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E43
Near/Far: Mapping and Navigating Over Earth
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E44
Near/Far: Space Travel
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E45
Near/Far: Knowing Where You Are
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E46
Order/Disorder: Regular Patterns
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E47
Order/Disorder: The Body – An Ordered System
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E48
Order/Disorder: Social Order
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E49
Order/Disorder: Disordered
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E50
Order/Disorder: Sum of Its Parts
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E51
Surfaces: Protection
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E52
Surfaces: Shapes and Functions at the Surface
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E53
Surfaces: Surface Tension and Bubbles
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E54
Surfaces: Surface of the Earth
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E55
Surfaces: The Atmosphere
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E56
Big/Small: Animal Sizes/Scaling
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E57
Big/Small: Animal Habitats
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E58
Big/Small: Dinoaurs
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E59
Big/Small: Volume & Efficiency
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E60
Big/Small: How Big is Big?
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E61
Crowded/Uncrowded: Human Crowding
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E62
Crowded/Uncrowded: Optimum Populations in Nature
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E63
Crowded/Uncrowded: Contrasts in Densities of Materials
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E64
Crowded/Uncrowded: Down Among the Atoms (Liquids & Solids)
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E65
Crowded/Uncrowded: Human Survival/Controlling Densities
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