Episodes (30)
1. Getting to the South Pole: Antarctica
Aired 7 February 1992
2. They're Habit Forming: Crystals
Aired 24 January 1992
3. Earth is Change: Erosion
10.0Aired 17 January 1991
4. Remains to be Seen: Fossils
Aired 10 January 1992
5. 3-D Sea: Ocean Environments
Aired 31 January 1992
6. Too Hot to Handle: Volcanoes
Aired 20 December 1991
7. Go with the Flow: The Water Cycle
Aired 13 December 1991
8. Eye of the Beholder: Animal Vision
Aired 4 October 1991
Stephanie Yu shows to Z Wright a series of unusual cameras that simulate the way animals see.
9. Living on the Edge: Antarctic Animals
Aired 22 November 1991
10. Life Down Under: Australian Mammals
Aired 8 November 1991
11. The Shocking Truth: Bioelectricity
Aired 15 November 1991
12. The Order of Things: Classification
Aired 20 September 1991
Both Stephanie Yu and Z Wright challenge each other with classification quizzes. Features the ""feather detective"" sequence from 3-2-1 Contact Episode 144.
13. The Inside Story: Digestion
Aired 1 November 1991
Stephanie demonstrates the digestive process by dissolving three food items in various solutions. Features the ""lost"" sequence from 3-2-1 Contact Episode 164, in which a group of kids examine a pig's digestive system.
14. Winging It: Flying Animals
Aired 25 October 1991
Stephanie shows how different wings suit different animals. Features the ""Different Wings for Different Things"" and ""Raptor Rehab"" sequences from 3-2-1 Contact Episode 76.

15. Eat and be Eaten: Food Chains
10.0Aired 6 December 1991
16. How Do They Know That? Innate & Learned Behavior
Aired 11 October 1991
Stephanie sees a mouse learn its way through a maze. It proves that there is a lot more behavioral traits an animal must learn than one would think. Features the orangutan rehabilitation sequence from 3-2-1 Contact episode called Tropics: Endangered Animals.
17. Living in Groups: Social Behavior
Aired 18 October 1991
Starting an ant farm isn't as easy as Stephanie thinks. Includes the bee sequence from 3-2-1 Contact Episode 22.
18. Learning New Tricks: Training Animals
Aired 27 September 1991
Stephanie shows that there is more to animal behavior. Humans can teach animals to do many things. Features the monkey-training sequence from 3-2-1 Contact Episode 83.
19. Air is There: Air is Matter
Aired 28 February 1992
20. Getting a Grip: Friction
Aired 27 March 1992
21. More Power to You: Generating Electricity
Aired 14 February 1992
22. Measuring G's: Gravity and Weightlessness
Aired 6 March 1992
23. Living Color: Light and Color
Aired 20 March 1992
24. Play Ball!: Motion and Forces
Aired 21 February 1992
25. Facts of Light: Refraction
Aired 3 April 1992
26. Bubble-ology: Surface Tension
Aired 13 March 1992
27. How Do You Know: Collect the Data
Aired 8 May 1992
28. How Do You Know? Dig It Up!
Aired 17 April 1992
29. How Do You Know? Experiment!
Aired 10 April 1992
30. How Do You Know? Make a Model
Aired 1 May 1992