｜Length : 15min. X7 ｜Year : 1992 ｜

This series of fifteen-minute science programs is a production of NHK. It has been prepared for children of ten years old with the goal of developing their familiarity with and cultivating in them a greater interest in science. Each program features a lively young woman named Mari who sets about tackling scientific problems serving as the children's eyes and ears.
The scientific phenomena addressed are varied and include the lever principle, the properties of light, air and combustion.
In each episode, an off-screen voice representing Mari's young brother Jiro helps Mari in solving problems and carrying out experiments and serves as a device to ask questions or express doubts that the young viewers can not raise.


1. How a Lever Works
2. How Levers Balance
3. Levers in our Dailly Lives
4. Light
5. Reflection of Light
6. Bending Light
7. Fire and Air

｜Length : 15min. x25 ｜Year : 1991 ｜

This NHK-produced science series of fifteen-minute programs was made for children aged seven and eight and aims at developing their awareness of and sparking their interest in science. Following the activities of the series' host, a young man named Hiko, and his two puppet friends named Pac and Poli, young viewers are introduced to the wonders of the physical and natural worlds through Hiko's simple experiments, the planting of a vegetable garden and the characters' adventures in fields and woods and at the seashore among other activities. Special video segments, many of which use stop - motion filming, enable the viewers to observe the lives of various creatures and the sprouting of seeds among other interesting aspects of nature. Each of the series' programs has an enjoyable story line to catch young viewers' imagination and attention even as they are exposed to the scientific method and develop a basis for a deeper study of science.


1. Let's Go into a Field
2. Planting Seeds
3. Tadpoles
4. Where Crayfish Live
5. A Closer Look at Crayfish
6. Sunflowers Sprout
7. Let's Look at Birds
8. Playing with Air
9. Experiments with Air
10. Vegetables Grow
11. Grow! Glow! Sunflowers
12. By the Seashore
13. Insects in Summer
14. Picking Sunflower Seeds
15. Soap Bubbles
16. Tumblers
17. Balancing Toys
18. Toys with Weights
19. Insects in the Field
20. How Seeds are Scattered
21. Let's Light Light Bulbs
22. Toys with Light Bulbs
23. What's That Sound ?
24. Making Straw Flutes
25. String Telephones