Episodes

Mark season as watched

1 Noisy/Quiet: Production & Processing of Sound 1980-01-14
2 Noisy/Quiet: The Ear 1980-01-15
3 Noisy/Quiet: How People & Animals Use Sound 1980-01-16
4 Noisy/Quiet: Music 1980-01-17
5 Noisy/Quiet: Range of Vibration 1980-01-18
6 Forces and Motion 1980-03-24
7 Forces and Fields 1980-03-25
8 Forces: Buoyancy and Gravity 1980-03-26
9 Forces and Machines 1980-03-27
10 Forces: A Spectacle of Forces 1980-03-28
11 Growth/Decay: Sex and Seeds 1980-03-10
12 Growth/Decay: Human Growth 1980-03-11
13 Growth/Decay: Decay 1980-03-12
14 Growth/Decay: Human Cultures/Land Forms 1980-03-13
15 Growth/Decay: Cycles Upon Cycles 1980-03-14
16 Fast/Slow: Speed Up, Slow Down 1980-01-28
17 Fast/Slow: Rhythms of Nature 1980-01-29
18 Fast/Slow: Lifetimes 1980-01-30
19 Fast/Slow: Speed and Racing 1980-02-07
20 Fast/Slow: Time and Time Again 1980-02-01
21 Communication: Human Communication 1980-03-17
22 Communication: Animal Communication 1980-03-18
23 Communication: Machinery of Communication 1980-03-19
24 Communication with Other Species 1980-03-20
25 Communication: Feedback 1980-03-21
26 Food/Fuel: Animal Food 1980-02-04
27 Food/Fuel: Human Food 1980-02-05
28 Food/Fuel: Growing and Processing Food 1980-02-06
29 Food/Fuel: Fueling Machines 1980-02-07
30 Food/Fuel: The Sun Makes Everything Go 1980-02-08
31 Hot/Cold: People's Temperatures 1980-01-21
32 Hot/Cold: Animal and Plant Adaptations 1980-01-22
33 Hot/Cold: How Hot or Cold Can It Get? 1980-01-23
34 Hot/Cold: Heat and Work 1980-01-24
35 Hot/Cold: Temperatures on Earth/In Space 1980-01-25
36 Light/Dark: The Sun 1980-02-18
37 Light/Dark: Adaptation of Plants/Animals 1980-02-19
38 Light/Dark: Electromagnetic Spectrum 1980-02-20
39 Light/Dark: The Eye 1980-02-21
40 Light/Dark: Light Sources 1980-02-22
41 Near/Far: Seeing Isn't Always Believing 1980-03-03
42 Near/Far: Mapping and Navigating Near Home 1980-03-04
43 Near/Far: Mapping and Navigating Over Earth 1980-03-05
44 Near/Far: Space Travel 1980-03-06
45 Near/Far: Knowing Where You Are 1980-03-07
46 Order/Disorder: Regular Patterns 1980-03-31
47 Order/Disorder: The Body – An Ordered System 1980-04-01
48 Order/Disorder: Social Order 1980-04-02
49 Order/Disorder: Disordered 1980-04-03
50 Order/Disorder: Sum of Its Parts 1980-04-04
51 Surfaces: Protection 1980-04-07
52 Surfaces: Shapes and Functions at the Surface 1980-04-08
53 Surfaces: Surface Tension and Bubbles 1980-04-09
54 Surfaces: Surface of the Earth 1980-04-10
55 Surfaces: The Atmosphere – Skin of the Earth 1980-04-11
56 Big/Small: Animal Sizes/Scaling 1980-02-25
57 Big/Small: Animal Habitats 1980-02-26
58 Big/Small: Dinoaurs 1980-02-27
59 Big/Small: Volume & Efficiency 1980-02-28
60 Big/Small: How Big is Big? 1980-02-29
61 Crowded/Uncrowded: Human Crowding 1980-02-11
62 Crowded/Uncrowded: Optimum Populations in Nature 1980-02-12
63 Crowded/Uncrowded: Contrasts in Densities of Materials 1980-02-13
64 Crowded/Uncrowded: Down Among the Atoms (Liquids & Solids) 1980-02-14
65 Crowded/Uncrowded: Human Survival/Controlling Densities 1980-02-15

Mark season as watched

1 Survival: Breathing 1983-10-31
2 Survival: Temperature 1983-11-01
3 Survival: Protection 1983-11-02
4 Survival: Energy 1983-11-03
5 Survival: Teamwork 1983-11-04
6 Sports: Training Analysis 1983-10-24
7 Sports: Time, Rate, Measurement 1983-10-25
8 Sports: Energy Transfer 1983-10-26
9 Sports: Impact Analysis 1983-10-27
10 Sports: Coordination 1983-10-28
11 Flight: Flying Animals 1983-10-17
12 Flight: Air Resistance 1983-10-18
13 Flight: Lift 1983-10-19
14 Flight: Thrust 1983-10-20
15 Flight: Acceleration 1983-10-21
16 Babies: The Code of Life 1983-11-07
17 Babies: Growth and Development 1983-11-08
18 Babies: Behavior 1983-11-09
19 Babies: Colonization 1983-11-10
20 Babies: Change 1983-11-11
21 Senses: Taste and Smell 1983-12-05
22 Senses: Sight 1983-12-06
23 Senses: Hearing 1983-12-07
24 Senses: Touch 1983-12-08
25 Senses: Special Sensors 1983-12-09
26 Shapes in Nature 1983-11-21
27 Shapes and Gravity 1983-11-22
28 Shapes: Streamlining 1983-11-23
29 Shapes: Form and Function 1983-11-24
30 Shapes: Clues 1983-11-25
31 Water: 3 Phases – Gas, Liquid, Solid 1983-11-28
32 Water: Medium for Life 1983-11-29
33 Water and People 1983-11-30
34 Water: Distribution 1983-12-01
35 Water in the Body 1983-12-02
36 Building: Materials 1983-11-14
37 Building: One of a Kind 1983-11-15
38 Building: Standard Parts 1983-11-16
39 Building: Modular 1983-11-17
40 Building: Communication 1983-11-18

Mark season as watched

1 Space: Weightless 1984-10-22
2 Space: Getting There 1984-10-23
3 Space: Living There 1984-10-24
4 Space: Working There 1984-10-25
5 Space: Anybody Out There? 1984-10-26
6 Measurement: How Long? How Far? 1984-10-29
7 Measurement: What's the Area? What's the Volume? 1984-10-30
8 Measurement: How Heavy? How Dense? 1984-10-31
9 Measurement: How Many? How Much? 1984-11-01
10 Measurement: How Fast? How Slow? 1984-11-02
11 Earth is Change 1984-11-05
12 Earth: Maps 1984-11-06
13 Earth: Climate 1984-11-07
14 Earth: Flora and Fauna 1984-11-08
15 Earth: Building Models 1984-11-09
16 Electricity: What is It? 1984-11-12
17 Electricity and Magnetism 1984-11-13
18 Electricity: Where Do We Get It? 1984-11-14
19 Electricity Runs in a Circuit 1984-11-15
20 Electricity: You Are Electric 1984-11-16

Mark season as watched

1 Tropics: Rubber 1985-09-23
2 Tropics: Metals 1985-09-24
3 Tropics: Rice 1985-09-25
4 Tropics: Working Animals – Monkeys and Elephants 1985-09-26
5 Tropics: Endangered Animals 1985-09-27
6 Light: From the Sun; To Your Eyes 1985-09-30
7 Light: Color 1985-10-01
8 Light: Eyes 1985-10-02
9 Light: How Animals See 1985-10-03
10 Light: Bending and Bouncing 1985-10-04
11 Farms: Sheep and Pigs – Selective Breeding 1985-10-07
12 Farms: Plants and Pigs – Plant Production 1985-10-08
13 Farms: Hybrids 1985-10-09
14 Farms: Cows and Pigs – Animal Products 1985-10-10
15 Farms: Chickens and Pigs – Animal Production 1985-10-11
16 Stuff: Metals 1985-10-14
17 Stuff: Clay 1985-10-15
18 Stuff: Shaping It 1985-10-16
19 Stuff: Feathers and Rubber 1985-10-17
20 Stuff: Using It 1985-10-18

Mark season as watched

1 Signals: Lingo 1986-09-22
2 Signals: Talking Birds, Talking Rooms 1986-09-23
3 Signals: Looking for Visual Clues 1986-09-24
4 Signals: Getting Them Around 1986-09-25
5 Signals: Cracking Codes 1986-09-26
6 Oceans: On the Sea 1986-09-29
7 Oceans: In the Sea 1986-09-30
8 Oceans: From the Sea 1986-10-01
9 Oceans: By the Sea 1986-10-02
10 Oceans: Of the Sea 1986-10-03
11 Motion: What's Up? 1986-10-06
12 Motion: Bones 1986-10-07
13 Motion: Smashing 1986-10-08
14 Motion: Getting a Grip 1986-10-09
15 Motion: Heave Ho! 1986-10-10
16 Eating: Tooth Detectives 1986-10-13
17 Eating: Picky Eaters 1986-10-14
18 Eating: Zoo Food 1986-10-15
19 Eating: Down the Hatch 1986-10-16
20 Eating: Leftovers 1986-10-17

Mark season as watched

1 Japan: Precious Oysters, Rare Salamanders 1987-10-12
2 Japan: Landslide! 1987-10-13
3 Japan: Paper and Kites 1987-10-14
4 Japan: Earthquake! 1987-10-15
5 Japan: Judo and Computers 1987-10-16
6 Detectives: Skin and Bone Detectives 1987-10-19
7 Detectives: Tool and Trash Detectives 1987-10-20
8 Detectives: Wildlife Detectives 1987-10-21
9 Detectives: Dinosaur Detectives 1987-10-22
10 Detectives: Pattern Detectives 1987-10-23
11 Architecture: Raising the Big Top 1987-10-26
12 Architecture: Home 1987-10-27
13 Architecture: Stack It Up 1987-10-28
14 Architecture: Made to Fit 1987-10-29
15 Architecture: Light But Strong 1987-10-30
16 Mammals: Rats and Bats 1987-11-02
17 Mammals: Keeping Warm 1987-11-03
18 Mammals: Live Birth, Warm Milk 1987-11-04
19 Mammals at Play 1987-11-05
20 Big Mammals: The High Cost of Living 1987-11-06
21 Modeling: Things on Wheels 1987-11-09
22 Modeling: Through Ice and Air 1987-11-10
23 Modeling: The Earth 1987-11-11
24 Modeling: Knees and Small Things 1987-11-12
25 Modeling: Spaces 1987-11-13
26 In the Air: Finding Your Way 1987-11-16
27 In the Air: Drifting with the Wind 1987-11-17
28 In the Air: Born to Fly 1987-11-18
29 In the Air: Fat Things That Fly 1987-11-19
30 In the Air: Unbelievable Flying Objects 1987-11-20

Mark season as watched

1 Antarctica: Getting There 1988-10-10
2 Antarctica: Getting Around 1988-10-11
3 Antarctica: Life On The Edge 1988-10-12
4 Antarctica: Life Under The Ice 1988-10-13
5 Antarctica: The Desert Continent 1988-10-14
6 Your Body: Twins 1988-10-17
7 Your Body: Having a Baby 1988-10-18
8 Your Body: Sleep 1988-10-19
9 Your Body: Spinning 1988-10-20
10 Your Body: Your Health 1988-10-21
11 Australia: Platypus & Echidna 1988-10-24
12 Australia: Moths & Beetles 1988-10-25
13 Australia: Emu & Kookaburra 1988-10-26
14 Australia: Koalas 1988-10-27
15 Australia: Kangaroos 1988-10-28
16 Structures: Bubble, Bubble 1988-10-31
17 Structures: Pipes and Reeds 1988-11-01
18 Structures: Chaos and Computers 1988-11-02
19 Structures: Running Robots 1988-11-03
20 Structures: Suspended in Air 1988-11-04
21 Greece: The Journey Begins 1988-11-07
22 Greece: Under The Ash 1988-11-08
23 Greece: Before History 1988-11-09
24 Greece: Sheep & Cheese 1988-11-10
25 Greece: The Parthenon 1988-11-11
26 Island: Parrot Fish 1988-11-14
27 Island: Lizards 1988-11-15
28 Island: Coral 1988-11-16
29 Island: Flamingos 1988-11-17
30 Island: Conch 1988-11-18

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