S02E20: Respiration
How breathing supplies the body with the oxygen it needs
Previous Episode 
Season 1
Flight
S1E1 / 10 Sep 1993
Earth's Crust
S1E2 / 17 Sep 1993
Dinosaurs
S1E3 / 24 Sep 1993
Skin
S1E4 / 01 Oct 1993
Buoyancy
S1E5 / 08 Oct 1993
Gravity
S1E6 / 15 Oct 1993
Digestion
S1E7 / 22 Oct 1993
Phases of Matter
S1E8 / 29 Oct 1993
Biodiversity
S1E9 / 05 Nov 1993
Simple Machines
S1E10 / 12 Nov 1993
The Moon
S1E11 / 19 Nov 1993
Sound
S1E12 / 26 Nov 1993
Garbage
S1E13 / 03 Dec 1993
Structures
S1E14 / 10 Dec 1993
Earth's Seasons
S1E15 / 17 Dec 1993
Light & Color
S1E16 / 24 Dec 1993
Cells
S1E17 / 21 Jan 1994
Electricity
S1E18 / 28 Jan 1994
Outer Space
S1E19 / 04 Feb 1994
Eyeball
S1E20 / 11 Feb 1994
Season 2
Magnetism
S2E1 / 18 Feb 1994
Wind
S2E2 / 25 Feb 1994
Blood & Circulation
S2E3 / 04 Mar 1994
Chemical Reactions
S2E4 / 11 Mar 1994
Static Electricity
S2E5 / 18 Mar 1994
Food Web
S2E6 / 25 Mar 1994
Light Optics
S2E7 / 10 Sep 1994
Bones & Muscles
S2E8 / 17 Sep 1994
Oceanography
S2E9 / 24 Sep 1994
Heat
S2E10 / 01 Oct 1994
Insects
S2E11 / 08 Oct 1994
Balance
S2E12 / 15 Oct 1994
The Sun
S2E13 / 22 Oct 1994
Brain
S2E14 / 29 Oct 1994
Forests
S2E15 / 05 Nov 1994
Communication
S2E16 / 12 Nov 1994
Momentum
S2E17 / 19 Nov 1994
Reptiles
S2E18 / 26 Nov 1994
Atmosphere
S2E19 / 03 Dec 1994
Respiration
S2E20 / 07 Jan 1995
Season 3
Planets & Moons
S3E1 / 14 Jan 1995
Pressure
S3E2 / 21 Jan 1995
Plants
S3E3 / 28 Jan 1995
Rocks & Soil
S3E4 / 03 Feb 1995
Energy
S3E5 / 10 Feb 1995
Evolution
S3E6 / 17 Feb 1995
Water Cycle
S3E7 / 24 Mar 1995
Friction
S3E8 / 31 Mar 1995
Germs
S3E9 / 07 Apr 1995
Climates
S3E10 / 14 Apr 1995
Waves
S3E11 / 21 Apr 1995
Ocean Life
S3E12 / 28 Apr 1995
Mammals
S3E13 / 08 Sep 1995
Spinning Things
S3E14 / 15 Sep 1995
Fish
S3E15 / 22 Sep 1995
Human Transportation
S3E16 / 29 Sep 1995
Wetlands
S3E17 / 06 Oct 1995
Birds
S3E18 / 13 Oct 1995
Populations
S3E19 / 20 Oct 1995
Animal Locomotion
S3E20 / 27 Oct 1995
Season 4
Rivers & Streams
S4E1 / 03 Nov 1995
Nutrition
S4E2 / 10 Nov 1995
Marine Mammals
S4E3 / 17 Nov 1995
Earthquakes
S4E4 / 24 Nov 1995
NTV Top 11 Video Countdown
S4E5 / 01 Dec 1995
Spiders
S4E6 / 05 Jan 1996
Pollution Solutions
S4E7 / 12 Jan 1996
Probability
S4E8 / 19 Jan 1996
Pseudoscience
S4E9 / 26 Jan 1996
Flowers
S4E10 / 27 Jan 1996
Archaeology
S4E11 / 28 Jan 1996
Deserts
S4E12 / 29 Jan 1996
Amphibians
S4E13 / 30 Jan 1996
Volcanoes
S4E14 / 31 Jan 1996
Invertebrates
S4E15 / 07 Feb 1996
Heart
S4E16 / 14 Feb 1996
Inventions
S4E17 / 21 Feb 1996
Computers
S4E18 / 25 Apr 1996
Fossils
S4E19 / 05 Sep 1997
Time
S4E20 / 12 Sep 1997
Season 5
Forensics
S5E1 / 19 Sep 1997
Space Exploration
S5E2 / 26 Sep 1997
Genes
S5E3 / 17 Oct 1997
Architecture
S5E4 / 24 Oct 1997
Farming
S5E5 / 31 Oct 1997
Life Cycles
S5E6 / 14 Nov 1997
Do-It-Yourself Science
S5E7 / 21 Nov 1997
Atoms & Molecules
S5E8 / 28 Nov 1997
Ocean Exploration
S5E9 / 05 Dec 1997
Lakes & Ponds
S5E10 / 21 Feb 1998
Smell
S5E11 / 28 Feb 1998Caves
S5E12 / 25 Apr 1998
Fluids
S5E13 / 02 May 1998
Erosion
S5E14 / 09 May 1998
Comets & Meteors
S5E15 / 16 May 1998
Storms
S5E16 / 23 May 1998
Measurement
S5E17 / 30 May 1998
Patterns
S5E18 / 06 Jun 1998
Science of Music
S5E19 / 13 Jun 1998
Motion
S5E20 / 20 Jun 1998
