3-2-1 Contact

3-2-1 Contact

Fantasy and adventure combine with scientific deduction.
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Episode Guide

  • 3-2-1 Contact - Island: Conch (Episode 220)
    Episode 220:

    Island: Conch

    Farming and testing the edible conch.

  • 3-2-1 Contact - Island: Flamingos (Episode 219)
    Episode 219:

    Island: Flamingos

    Extracting salt from ocean water.

  • 3-2-1 Contact - Island: Coral (Episode 218)
    Episode 218:

    Island: Coral

    Exploring a living coral reef.

  • 3-2-1 Contact - Island: Lizards (Episode 217)
    Episode 217:

    Island: Lizards

    A lizard adapts to its desert island.

  • 3-2-1 Contact - Island: Parrot Fish (Episode 216)
    Episode 216:

    Island: Parrot Fish

    Diving with an underwater computer.

  • 3-2-1 Contact - Greece: The Parthenon (Episode 215)
    Episode 215:

    Greece: The Parthenon

    Restoring an ancient monument.

  • 3-2-1 Contact - Greece: Sheep & Cheese (Episode 214)
    Episode 214:

    Greece: Sheep & Cheese

    Making cheese from sheep's milk.

  • 3-2-1 Contact - Greece: Before History (Episode 213)
    Episode 213:

    Greece: Before History

    Exploring an ancient civilization.

  • 3-2-1 Contact - Greece: Under the Ash (Episode 212)
    Episode 212:

    Greece: Under the Ash

    Ash covers ancient cities.

  • 3-2-1 Contact - Greece: The Journey Begins (Episode 211)
    Episode 211:

    Greece: The Journey Begins

    Searching for Atlantis.

  • 3-2-1 Contact - Structures: Suspended in Air (Episode 210)
    Episode 210:

    Structures: Suspended in Air

    Rock-climbing and rope-tugging.

  • 3-2-1 Contact - Structures: Running & Robots (Episode 209)
    Episode 209:

    Structures: Running & Robots

    Hopping robots.

  • 3-2-1 Contact - Structures: Chaos & Crystals (Episode 208)
    Episode 208:

    Structures: Chaos & Crystals

    Computer snowflakes.

  • 3-2-1 Contact - Structures: Pipes & Reeds (Episode 207)
    Episode 207:

    Structures: Pipes & Reeds

    Racing high-tech bikes.

  • 3-2-1 Contact - Structures: Bubble, Bubble (Episode 206)
    Episode 206:

    Structures: Bubble, Bubble

    Inside a giant bubble.

  • 3-2-1 Contact - Australia: Kangaroos (Episode 205)
    Episode 205:

    Australia: Kangaroos

    A profile of the kangaroo.

  • 3-2-1 Contact - Australia: Koalas (Episode 204)
    Episode 204:

    Australia: Koalas

    Capturing and tagging the koala.

  • 3-2-1 Contact - Australia: Emu & Kookaburra (Episode 203)
    Episode 203:

    Australia: Emu & Kookaburra

    Australia's national birds.

  • 3-2-1 Contact - Australia: Moths & Beetles (Episode 202)
    Episode 202:

    Australia: Moths & Beetles

    Eating moths; studying beetles.

  • 3-2-1 Contact - Australia: Platypus & Echidnas (Episode 201)
    Episode 201:

    Australia: Platypus & Echidnas

    Tracking platypuses and echidnas.

  • 3-2-1 Contact - Your Body: Your Health (Episode 200)
    Episode 200:

    Your Body: Your Health

    Flying hospitals; ambulances.

  • 3-2-1 Contact - Your Body: Spinning (Episode 199)
    Episode 199:

    Your Body: Spinning

    The Laura Dean Dancers discuss balance.

  • 3-2-1 Contact - Your Body: Sleep (Episode 198)
    Episode 198:

    Your Body: Sleep

    Why people need sleep.

  • 3-2-1 Contact - Your Body: Having a Baby (Episode 197)
    Episode 197:

    Your Body: Having a Baby

    Pregnancy and infant care.

  • 3-2-1 Contact - Your Body: Twins (Episode 196)
    Episode 196:

    Your Body: Twins

    Twins hold a holiday party.

  • 3-2-1 Contact - Antarctica: Desert Continent (Episode 195)
    Episode 195:

    Antarctica: Desert Continent

    Antarctica's Dry Valley.

  • 3-2-1 Contact - Antarctica: Life Under the Ice (Episode 194)
    Episode 194:

    Antarctica: Life Under the Ice

    Fishing for jellyfish.

  • 3-2-1 Contact - Antarctica: Life on the Edge (Episode 193)
    Episode 193:

    Antarctica: Life on the Edge

    Tagging penguins.

  • 3-2-1 Contact - Antarctica: Getting Around (Episode 192)
    Episode 192:

    Antarctica: Getting Around

    Driving on ice; the South Pole.

  • 3-2-1 Contact - Antarctica: Getting There (Episode 191)
    Episode 191:

    Antarctica: Getting There

    Traveling from New York to Antarctica.

  • 3-2-1 Contact - In the Air: Unbelievable Flying Objects (Episode 190)
    Episode 190:

    In the Air: Unbelievable Flying Objects

    Pterodactyls.

  • 3-2-1 Contact - In the Air: Fat Things That Fly (Episode 189)
    Episode 189:

    In the Air: Fat Things That Fly

    Ladybugs, softballs, blimps.

  • 3-2-1 Contact - In the Air: Born to Fly (Episode 188)
    Episode 188:

    In the Air: Born to Fly

    A butterfly "aviary."

  • 3-2-1 Contact - In the Air: Drifting With the Wind (Episode 187)
    Episode 187:

    In the Air: Drifting With the Wind

    An engineless plane.

  • 3-2-1 Contact - In the Air: Finding Your Way (Episode 186)
    Episode 186:

    In the Air: Finding Your Way

    Bats navigate in the dark.

  • 3-2-1 Contact - Modeling: Spaces (Episode 185)
    Episode 185:

    Modeling: Spaces

    Making a tropical jungle for a zoo.

  • 3-2-1 Contact - Modeling: Knees & Small Things (Episode 184)
    Episode 184:

    Modeling: Knees & Small Things

    Artificial knees.

  • 3-2-1 Contact - Modeling: Earth (Episode 183)
    Episode 183:

    Modeling: Earth

    Students make neighborhood maps.

  • 3-2-1 Contact - Modeling: Through Ice & Air (Episode 182)
    Episode 182:

    Modeling: Through Ice & Air

    Boats break arctic ice.

  • 3-2-1 Contact - Modeling: Things on Wheels (Episode 181)
    Episode 181:

    Modeling: Things on Wheels

    Model-car racing.

  • 3-2-1 Contact - Big Mammals: High Cost of Living (Episode 180)
    Episode 180:

    Big Mammals: High Cost of Living

    Rounding up horses.

  • 3-2-1 Contact - Mammals: Mammals at Play (Episode 179)
    Episode 179:

    Mammals: Mammals at Play

    Kenyan baboons frolic.

  • 3-2-1 Contact - Mammals: Live Birth, Warm Milk (Episode 178)
    Episode 178:

    Mammals: Live Birth, Warm Milk

    Newborn bear cubs.

  • 3-2-1 Contact - Mammals: Keeping Warm (Episode 177)
    Episode 177:

    Mammals: Keeping Warm

    Dense fur insulates the sea otter.

  • 3-2-1 Contact - Mammals: Rats & Bats (Episode 176)
    Episode 176:

    Mammals: Rats & Bats

    A study of rats and bats.

  • 3-2-1 Contact - Architecture: Light But Strong (Episode 175)
    Episode 175:

    Architecture: Light But Strong

    Students design balsa structures.

  • 3-2-1 Contact - Architecture: Made to Fit (Episode 174)
    Episode 174:

    Architecture: Made to Fit

    Kitchen designs.

  • 3-2-1 Contact - Architecture: Stack It Up (Episode 173)
    Episode 173:

    Architecture: Stack It Up

    Building part of a cathedral.

  • 3-2-1 Contact - Architecture: Home (Episode 172)
    Episode 172:

    Architecture: Home

    People build a Masai house in Kenya.

  • 3-2-1 Contact - Architecture: Raising the Big Top (Episode 171)
    Episode 171:

    Architecture: Raising the Big Top

    An elephant helps raise a tent.

  • 3-2-1 Contact - Pattern Detectives (Episode 170)
    Episode 170:

    Pattern Detectives

    The science of fingerprinting.

  • 3-2-1 Contact - Dinosaur Detectives (Episode 169)
    Episode 169:

    Dinosaur Detectives

    Dinosaur models.

  • 3-2-1 Contact - Wildlife Detectives (Episode 168)
    Episode 168:

    Wildlife Detectives

    Injured birds; owl pellets.

  • 3-2-1 Contact - Tool & Trash Detectives (Episode 167)
    Episode 167:

    Tool & Trash Detectives

    Stone tools in Kenya.

  • 3-2-1 Contact - Skin & Bone Detectives (Episode 166)
    Episode 166:

    Skin & Bone Detectives

    A prehistoric mine; mummies.

  • 3-2-1 Contact - Japan: Judo & Computers (Episode 165)
    Episode 165:

    Japan: Judo & Computers

    A computer reads special characters.

  • 3-2-1 Contact - Japan: Earthquake! (Episode 164)
    Episode 164:

    Japan: Earthquake!

    Preparing for an earthquake.

  • 3-2-1 Contact - Japan: Paper & Kites (Episode 163)
    Episode 163:

    Japan: Paper & Kites

    Homemade paper and kites.

  • 3-2-1 Contact - Japan: Landslide! (Episode 162)
    Episode 162:

    Japan: Landslide!

    Repairing landslide damage.

  • 3-2-1 Contact - Japan: Precious Oysters, Rare Salamanders (Episode 161)
    Episode 161:

    Japan: Precious Oysters, Rare Salamanders

    Cultured pearls.

  • 3-2-1 Contact - Eating: Leftovers (Episode 160)
    Episode 160:

    Eating: Leftovers

    The diet of prehistoric humans.

  • 3-2-1 Contact - Eating: Down the Hatch (Episode 159)
    Episode 159:

    Eating: Down the Hatch

    A pig's digestive track.

  • 3-2-1 Contact - Eating: Zoo Food (Episode 158)
    Episode 158:

    Eating: Zoo Food

    The special roles of proteins.

  • 3-2-1 Contact - Eating: Picky Eaters (Episode 157)
    Episode 157:

    Eating: Picky Eaters

    The diets of koalas and fleas.

  • 3-2-1 Contact - Eating: Tooth Detectives (Episode 156)
    Episode 156:

    Eating: Tooth Detectives

    Examining animals' teeth.

  • 3-2-1 Contact - Motion: Heave Ho! (Episode 155)
    Episode 155:

    Motion: Heave Ho!

    Villagers erect a huge obelisk.

  • 3-2-1 Contact - Motion: Getting a Grip (Episode 154)
    Episode 154:

    Motion: Getting a Grip

    Minimizing friction.

  • 3-2-1 Contact - Motion: Smashing (Episode 153)
    Episode 153:

    Motion: Smashing

    Collisions and stops.

  • 3-2-1 Contact - Motion: Bones (Episode 152)
    Episode 152:

    Motion: Bones

    The skeleton aids movement.

  • 3-2-1 Contact - Motion: What's Up? (Episode 151)
    Episode 151:

    Motion: What's Up?

    A large boat is raised in a lock.

  • 3-2-1 Contact - Oceans: Of the Sea (Episode 150)
    Episode 150:

    Oceans: Of the Sea

    The cast explores a shipwreck.

  • 3-2-1 Contact - Oceans: By the Sea (Episode 149)
    Episode 149:

    Oceans: By the Sea

    A marine biologist discovers a crustacean.

  • 3-2-1 Contact - Oceans: From the Sea (Episode 148)
    Episode 148:

    Oceans: From the Sea

    A man crosses the Atlantic on a raft.

  • 3-2-1 Contact - Oceans: In the Sea (Episode 147)
    Episode 147:

    Oceans: In the Sea

    The possibility of humans living underwater.

  • 3-2-1 Contact - Oceans: On the Sea (Episode 146)
    Episode 146:

    Oceans: On the Sea

    Counteracting water resistance.

  • 3-2-1 Contact - Signals: Cracking Codes (Episode 145)
    Episode 145:

    Signals: Cracking Codes

    Computers convert messages.

  • 3-2-1 Contact - Signals: Getting Them Around (Episode 144)
    Episode 144:

    Signals: Getting Them Around

    A reporter sends his story.

  • 3-2-1 Contact - Signals: Looking for Visual Clues (Episode 143)
    Episode 143:

    Signals: Looking for Visual Clues

    Animals respond to signals.

  • 3-2-1 Contact - Signals: Talking Birds, Talking Rooms (Episode 142)
    Episode 142:

    Signals: Talking Birds, Talking Rooms

    A talking parrot.

  • 3-2-1 Contact - Signals: Lingo (Episode 141)
    Episode 141:

    Signals: Lingo

    A French tourist visits a diner.

  • 3-2-1 Contact - Stuff: Using It (Episode 140)
    Episode 140:

    Stuff: Using It

    Miguel tries a human-powered aircraft.

  • 3-2-1 Contact - Stuff: Feathers & Rubber (Episode 139)
    Episode 139:

    Stuff: Feathers & Rubber

    A makeup artist transforms Miguel.

  • 3-2-1 Contact - Stuff: Shaping It (Episode 138)
    Episode 138:

    Stuff: Shaping It

    An artist heats and hammers glass.

  • 3-2-1 Contact - Stuff: Clay (Episode 137)
    Episode 137:

    Stuff: Clay

    Kathy visits the Kohler factory in Wisconsin.

  • 3-2-1 Contact - Stuff: Metal (Episode 136)
    Episode 136:

    Stuff: Metal

    Restoration of the Statue of Liberty.

  • 3-2-1 Contact - Farms: Chickens & Pigs (Episode 135)
    Episode 135:

    Farms: Chickens & Pigs

    Mass production farming.

  • 3-2-1 Contact - Farms: Cows & Pigs (Episode 134)
    Episode 134:

    Farms: Cows & Pigs

    Mary watches automatic milking machines.

  • 3-2-1 Contact - Farms: Hybrids (Episode 133)
    Episode 133:

    Farms: Hybrids

    A "brangus" and its parents.

  • 3-2-1 Contact - Farms: Plants & Pigs (Episode 132)
    Episode 132:

    Farms: Plants & Pigs

    Where rubber comes from.

  • 3-2-1 Contact - Farms: Sheeps & Pigs (Episode 131)
    Episode 131:

    Farms: Sheeps & Pigs

    A sheepshearing class.

  • 3-2-1 Contact - Light: Bending & Bouncing (Episode 130)
    Episode 130:

    Light: Bending & Bouncing

    Prisms help save lives.

  • 3-2-1 Contact - Light: How Animals See (Episode 129)
    Episode 129:

    Light: How Animals See

    Dogs and colorblindness.

  • 3-2-1 Contact - Light: Eyes (Episode 128)
    Episode 128:

    Light: Eyes

    Dissecting a bovine eye.

  • 3-2-1 Contact - Light: Color (Episode 127)
    Episode 127:

    Light: Color

    Why leaves change color in autumn.

  • 3-2-1 Contact - Light: From the Sun (Episode 126)
    Episode 126:

    Light: From the Sun

    Astronomer Jack Harvey discusses the characteristics of sun and sunlight.

  • 3-2-1 Contact - Tropics: Endangered Animals (Episode 125)
    Episode 125:

    Tropics: Endangered Animals

    Tame orangutans return to the wild.

  • 3-2-1 Contact - Tropics: Monkeys & Elephants (Episode 124)
    Episode 124:

    Tropics: Monkeys & Elephants

    Monkeys and elephants aid man.

  • 3-2-1 Contact - Tropics: Rice (Episode 123)
    Episode 123:

    Tropics: Rice

    Men plant and harvest rice.

  • 3-2-1 Contact - Tropics: Metals (Episode 122)
    Episode 122:

    Tropics: Metals

    Tin ore on a Malaysian hillside.

  • 3-2-1 Contact - Tropics: Rubber (Episode 121)
    Episode 121:

    Tropics: Rubber

    Making sneakers in Malaysia.

  • 3-2-1 Contact - Electricity: You Are Electric (Episode 120)
    Episode 120:

    Electricity: You Are Electric

    Electricity in living beings.

  • 3-2-1 Contact - Electricity: Runs in a Circuit (Episode 119)
    Episode 119:

    Electricity: Runs in a Circuit

    Model trains.

  • 3-2-1 Contact - Electricity: How It Gets Made (Episode 118)
    Episode 118:

    Electricity: How It Gets Made

    Converting solar energy.

  • 3-2-1 Contact - Electricity: Magnets (Episode 117)
    Episode 117:

    Electricity: Magnets

    Using magnets to see inside the body.

  • 3-2-1 Contact - Electricity: What Is It? (Episode 116)
    Episode 116:

    Electricity: What Is It?

    Measuring electrical activity.

  • 3-2-1 Contact - Earth: Building Models (Episode 115)
    Episode 115:

    Earth: Building Models

    Solving problems with scale models.

  • 3-2-1 Contact - Earth: Flora & Fauna (Episode 114)
    Episode 114:

    Earth: Flora & Fauna

    How bats survive.

  • 3-2-1 Contact - Earth: Climate (Episode 113)
    Episode 113:

    Earth: Climate

    Life in a tropical rain forest.

  • 3-2-1 Contact - Earth: Maps (Episode 112)
    Episode 112:

    Earth: Maps

    Using maps for orienteering.

  • 3-2-1 Contact - Earth: Earth Is Change (Episode 111)
    Episode 111:

    Earth: Earth Is Change

    Lava movement.

  • 3-2-1 Contact - Measurement: How Fast? How Slow? (Episode 110)
    Episode 110:

    Measurement: How Fast? How Slow?

    An ostrich's speed.

  • 3-2-1 Contact - Measurement: How Many? How Much? (Episode 109)
    Episode 109:

    Measurement: How Many? How Much?

    A vulture census.

  • 3-2-1 Contact - Measurement: How Heavy? How Dense? (Episode 108)
    Episode 108:

    Measurement: How Heavy? How Dense?

    Panning for gold.

  • 3-2-1 Contact - Measurement: What's the Area? What's the Volume? (Episode 107)
    Episode 107:

    Measurement: What's the Area? What's the Volume?

    Drawing.

  • 3-2-1 Contact - Measurement: How Long? How Far? (Episode 106)
    Episode 106:

    Measurement: How Long? How Far?

    Measuring systems.

  • 3-2-1 Contact - Space: Anybody Out There? (Episode 105)
    Episode 105:

    Space: Anybody Out There?

    Searching for life.

  • 3-2-1 Contact - Space: Working There (Episode 104)
    Episode 104:

    Space: Working There

    Astronaut Sally Ride.

  • 3-2-1 Contact - Space: Living There (Episode 103)
    Episode 103:

    Space: Living There

    Food for a weightless environment.

  • 3-2-1 Contact - Space: Getting There (Episode 102)
    Episode 102:

    Space: Getting There

    Trying on a space suit.

  • 3-2-1 Contact - Space: Weightless (Episode 101)
    Episode 101:

    Space: Weightless

    Riding in an astronaut's training jet.

  • 3-2-1 Contact - Water: Water in the Human Body (Episode 100)
    Episode 100:

    Water: Water in the Human Body

    Studying bears.

  • 3-2-1 Contact - Water: Distribution (Episode 99)
    Episode 99:

    Water: Distribution

    Converting water to electricity.

  • 3-2-1 Contact - Water: Water & People (Episode 98)
    Episode 98:

    Water: Water & People

    Living in a flood zone.

  • 3-2-1 Contact - Water: Medium for Life (Episode 97)
    Episode 97:

    Water: Medium for Life

    How cactuses survive.

  • 3-2-1 Contact - Water: Three Phases: Solid, Liquid, Gas (Episode 96)
    Episode 96:

    Water: Three Phases: Solid, Liquid, Gas

    Changing forms.

  • 3-2-1 Contact - Shapes: Clues (Episode 95)
    Episode 95:

    Shapes: Clues

    Protein-molecule shape determines function.

  • 3-2-1 Contact - Shapes: Form & Function (Episode 94)
    Episode 94:

    Shapes: Form & Function

    A violin's shape determines sound quality.

  • 3-2-1 Contact - Shapes: Streamlining (Episode 93)
    Episode 93:

    Shapes: Streamlining

    Bicycle design affects wind resistance.

  • 3-2-1 Contact - Shapes: Shapes & Gravity (Episode 92)
    Episode 92:

    Shapes: Shapes & Gravity

    Designing a bridge.

  • 3-2-1 Contact - Shapes: In Nature (Episode 91)
    Episode 91:

    Shapes: In Nature

    Animating a human form by computer.

  • 3-2-1 Contact - Senses: Special Sensors (Episode 90)
    Episode 90:

    Senses: Special Sensors

    A robot has touch sensors.

  • 3-2-1 Contact - Senses: Touch (Episode 89)
    Episode 89:

    Senses: Touch

    Infants have a heightened sense of touch.

  • 3-2-1 Contact - Senses: Hearing (Episode 88)
    Episode 88:

    Senses: Hearing

    Producing various sounds.

  • 3-2-1 Contact - Senses: Sight (Episode 87)
    Episode 87:

    Senses: Sight

    A rescue by sharp-eyed pigeons.

  • 3-2-1 Contact - Senses: Taste & Smell (Episode 86)
    Episode 86:

    Senses: Taste & Smell

    Human and animal senses.

  • 3-2-1 Contact - Babies: Change (Episode 85)
    Episode 85:

    Babies: Change

    Excavating 80-million-year-old dinosaur fossils.

  • 3-2-1 Contact - Babies: Colonization (Episode 84)
    Episode 84:

    Babies: Colonization

    Surviving a volcanic eruption.

  • 3-2-1 Contact - Babies: Behavior (Episode 83)
    Episode 83:

    Babies: Behavior

    A trained monkey aids a quadriplegic.

  • 3-2-1 Contact - Babies: Growth & Development (Episode 82)
    Episode 82:

    Babies: Growth & Development

    Duplicating cells.

  • 3-2-1 Contact - Babies: Code of Life (Episode 81)
    Episode 81:

    Babies: Code of Life

    DNA, the genetic code.

  • 3-2-1 Contact - Flight: Acceleration (Episode 80)
    Episode 80:

    Flight: Acceleration

    Space satellites.

  • 3-2-1 Contact - Flight: Thrust (Episode 79)
    Episode 79:

    Flight: Thrust

    Flying in an ultralight plane.

  • 3-2-1 Contact - Flight: Lift (Episode 78)
    Episode 78:

    Flight: Lift

    A paper airplane.

  • 3-2-1 Contact - Flight: Air Resistance (Episode 77)
    Episode 77:

    Flight: Air Resistance

    Inflating a parade balloon.

  • 3-2-1 Contact - Flight: Flying Animals (Episode 76)
    Episode 76:

    Flight: Flying Animals

    A flying lesson.

  • 3-2-1 Contact - Sports: Coordination (Episode 75)
    Episode 75:

    Sports: Coordination

    Synchronized swimmers.

  • 3-2-1 Contact - Sports: Impact Analysis (Episode 74)
    Episode 74:

    Sports: Impact Analysis

    Testing baseball helmets.

  • 3-2-1 Contact - Sports: Energy Transfer (Episode 73)
    Episode 73:

    Sports: Energy Transfer

    Cyclists and pole-vaulters.

  • 3-2-1 Contact - Sports: Time, Rate, Measurement (Episode 72)
    Episode 72:

    Sports: Time, Rate, Measurement

    Increasing skating speed.

  • 3-2-1 Contact - Sports: Training Analysis (Episode 71)
    Episode 71:

    Sports: Training Analysis

    Computers aid an athlete.

  • 3-2-1 Contact - Survival: Teamwork (Episode 70)
    Episode 70:

    Survival: Teamwork

  • 3-2-1 Contact - Survival: Energy (Episode 69)
    Episode 69:

    Survival: Energy

  • 3-2-1 Contact - Survival: Protection (Episode 68)
    Episode 68:

    Survival: Protection

  • 3-2-1 Contact - Survival: Temperature (Episode 67)
    Episode 67:

    Survival: Temperature

  • 3-2-1 Contact - Survival: Breathing (Episode 66)
    Episode 66:

    Survival: Breathing

  • 3-2-1 Contact - Crowded/Uncrowded: Human Survival/Controlling Densities (Episode 65)
    Episode 65:

    Crowded/Uncrowded: Human Survival/Controlling Densities

  • 3-2-1 Contact - Crowded/Uncrowded: Down Among the Atoms (Liquids & Solids) (Episode 64)
    Episode 64:

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

  • 3-2-1 Contact - Crowded/Uncrowded: Contrasts in Density of Materials (Episode 63)
    Episode 63:

    Crowded/Uncrowded: Contrasts in Density of Materials

  • 3-2-1 Contact - Crowded/Uncrowded: Optimum Populations in Nature (Episode 62)
    Episode 62:

    Crowded/Uncrowded: Optimum Populations in Nature

  • 3-2-1 Contact - Crowded/Uncrowded: Human Crowding (Episode 61)
    Episode 61:

    Crowded/Uncrowded: Human Crowding

  • 3-2-1 Contact - Big/Small: Review of the Week (Episode 60)
    Episode 60:

    Big/Small: Review of the Week

  • 3-2-1 Contact - Big/Small: Volume & Efficiency (Episode 59)
    Episode 59:

    Big/Small: Volume & Efficiency

  • 3-2-1 Contact - Big/Small: Dinosaurs (Episode 58)
    Episode 58:

    Big/Small: Dinosaurs

  • 3-2-1 Contact - Big/Small: Animal Habitats (Episode 57)
    Episode 57:

    Big/Small: Animal Habitats

  • 3-2-1 Contact - Big/Small: Animal Sizes/Scaling (Episode 56)
    Episode 56:

    Big/Small: Animal Sizes/Scaling

  • 3-2-1 Contact - Surfaces: Atmosphere -- Skin of the Earth (Episode 55)
    Episode 55:

    Surfaces: Atmosphere -- Skin of the Earth

  • 3-2-1 Contact - Surfaces: Surface of the Earth (Episode 54)
    Episode 54:

    Surfaces: Surface of the Earth

  • 3-2-1 Contact - Surfaces: Surface Tension & Bubbles (Episode 53)
    Episode 53:

    Surfaces: Surface Tension & Bubbles

  • 3-2-1 Contact - Surfaces: Shapes & Functions at the Surface (Episode 52)
    Episode 52:

    Surfaces: Shapes & Functions at the Surface

  • 3-2-1 Contact - Surfaces (Episode 51)
    Episode 51:

    Surfaces

  • 3-2-1 Contact - Order/Disorder (Episode 50)
    Episode 50:

    Order/Disorder

  • 3-2-1 Contact - Order/Disorder: Disordered (Episode 49)
    Episode 49:

    Order/Disorder: Disordered

  • 3-2-1 Contact - Order/Disorder: Social Order (Episode 48)
    Episode 48:

    Order/Disorder: Social Order

  • 3-2-1 Contact - Order/Disorder: Body -- An Ordered System (Episode 47)
    Episode 47:

    Order/Disorder: Body -- An Ordered System

  • 3-2-1 Contact - Order/Disorder: Regular Patterns (Episode 46)
    Episode 46:

    Order/Disorder: Regular Patterns

  • 3-2-1 Contact - Near/Far: Knowing Where You Are (Episode 45)
    Episode 45:

    Near/Far: Knowing Where You Are

  • 3-2-1 Contact - Near/Far (Episode 44)
    Episode 44:

    Near/Far

  • 3-2-1 Contact - Near/Far: Space Travel (Episode 43)
    Episode 43:

    Near/Far: Space Travel

  • 3-2-1 Contact - Near/Far: Mapping & Navigation Over Earth (Episode 42)
    Episode 42:

    Near/Far: Mapping & Navigation Over Earth

  • 3-2-1 Contact - Near/Far: Mapping & Navigation Near Home (Episode 41)
    Episode 41:

    Near/Far: Mapping & Navigation Near Home

  • 3-2-1 Contact - Light/Dark: Sun (Episode 40)
    Episode 40:

    Light/Dark: Sun

  • 3-2-1 Contact - Light/Dark: Light Sources (Episode 39)
    Episode 39:

    Light/Dark: Light Sources

  • 3-2-1 Contact - Light/Dark: Electromagnetic Spectrum (Episode 38)
    Episode 38:

    Light/Dark: Electromagnetic Spectrum

  • 3-2-1 Contact - Light/Dark: Adaptations of Plants/Animals (Episode 37)
    Episode 37:

    Light/Dark: Adaptations of Plants/Animals

  • 3-2-1 Contact - Light/Dark: Eye (Episode 36)
    Episode 36:

    Light/Dark: Eye

  • 3-2-1 Contact - Hot/Cold: Body Temperatures on Earth/Space (Episode 35)
    Episode 35:

    Hot/Cold: Body Temperatures on Earth/Space

  • 3-2-1 Contact - Hot/Cold: Heat & Work (Episode 34)
    Episode 34:

    Hot/Cold: Heat & Work

  • 3-2-1 Contact - Hot/Cold: How Hot or Cold Can It Get? (Episode 33)
    Episode 33:

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

  • 3-2-1 Contact - Hot/Cold: Animal/Plant Adaptations (Episode 32)
    Episode 32:

    Hot/Cold: Animal/Plant Adaptations

  • 3-2-1 Contact - Hot/Cold: People's Temperatures (Episode 31)
    Episode 31:

    Hot/Cold: People's Temperatures

  • 3-2-1 Contact - Food/Fuel: Sun Makes Everything Go (Episode 30)
    Episode 30:

    Food/Fuel: Sun Makes Everything Go

  • 3-2-1 Contact - Food/Fuel (Episode 29)
    Episode 29:

    Food/Fuel

  • 3-2-1 Contact - Food/Fuel: Growing & Processing Food (Episode 28)
    Episode 28:

    Food/Fuel: Growing & Processing Food

  • 3-2-1 Contact - Food/Fuel: Human Food (Episode 27)
    Episode 27:

    Food/Fuel: Human Food

  • 3-2-1 Contact - Food/Fuel: Animal Food (Episode 26)
    Episode 26:

    Food/Fuel: Animal Food

  • 3-2-1 Contact - Communication: Feedback (Episode 25)
    Episode 25:

    Communication: Feedback

  • 3-2-1 Contact - Communication: Communication With Other Species (Episode 24)
    Episode 24:

    Communication: Communication With Other Species

  • 3-2-1 Contact - Communication: Machinery of Communication (Episode 23)
    Episode 23:

    Communication: Machinery of Communication

  • 3-2-1 Contact - Communication: Animal Communication (Episode 22)
    Episode 22:

    Communication: Animal Communication

  • 3-2-1 Contact - Communication: Human Communication (Episode 21)
    Episode 21:

    Communication: Human Communication

  • 3-2-1 Contact - Fast/Slow: Time & Time Again (Episode 20)
    Episode 20:

    Fast/Slow: Time & Time Again

  • 3-2-1 Contact - Fast/Slow: Speed & Racing (Episode 19)
    Episode 19:

    Fast/Slow: Speed & Racing

  • 3-2-1 Contact - Fast/Slow: Lifetimes (Episode 18)
    Episode 18:

    Fast/Slow: Lifetimes

  • 3-2-1 Contact - Fast/Slow: Rhythms of Nature (Episode 17)
    Episode 17:

    Fast/Slow: Rhythms of Nature

  • 3-2-1 Contact - Fast/Slow: Speed Up, Slow Down (Episode 16)
    Episode 16:

    Fast/Slow: Speed Up, Slow Down

  • 3-2-1 Contact - Growth/Decay: Cycles Upon Cycles (Episode 15)
    Episode 15:

    Growth/Decay: Cycles Upon Cycles

  • 3-2-1 Contact - Growth/Decay: Human Cultures/Landforms (Episode 14)
    Episode 14:

    Growth/Decay: Human Cultures/Landforms

  • 3-2-1 Contact - Growth/Decay: Decay (Episode 13)
    Episode 13:

    Growth/Decay: Decay

  • 3-2-1 Contact - Growth/Decay: Human Growth (Episode 12)
    Episode 12:

    Growth/Decay: Human Growth

  • 3-2-1 Contact - Growth/Decay: Sex & Seeds (Episode 11)
    Episode 11:

    Growth/Decay: Sex & Seeds

  • 3-2-1 Contact - Forces: Spectacle of Forces (Episode 10)
    Episode 10:

    Forces: Spectacle of Forces

  • 3-2-1 Contact - Forces: Forces & Machines (Episode 9)
    Episode 9:

    Forces: Forces & Machines

  • 3-2-1 Contact - Forces: Buoyancy & Gravity (Episode 8)
    Episode 8:

    Forces: Buoyancy & Gravity

  • 3-2-1 Contact - Forces: Forces & Fields (Episode 7)
    Episode 7:

    Forces: Forces & Fields

  • 3-2-1 Contact - Forces: Forces & Motion (Episode 6)
    Episode 6:

    Forces: Forces & Motion

  • 3-2-1 Contact - Noisy/Quiet: Range of Vibration (Episode 5)
    Episode 5:

    Noisy/Quiet: Range of Vibration

  • 3-2-1 Contact - Noisy/Quiet (Episode 4)
    Episode 4:

    Noisy/Quiet

  • 3-2-1 Contact - Noisy/Quiet: How People & Animals Use Sound (Episode 3)
    Episode 3:

    Noisy/Quiet: How People & Animals Use Sound

  • 3-2-1 Contact - Noisy/Quiet: The Ear (Episode 2)
    Episode 2:

    Noisy/Quiet: The Ear

  • 3-2-1 Contact - Noisy and Quiet: Production & Processing of Sound (Episode 1)
    Episode 1:

    Noisy and Quiet: Production & Processing of Sound

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