More science projects you can do
Instructions for a variety of experiments and exhibits with easily available materials in the areas of natural history, mechanics and technology, and physics.
| Prif Awdur: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Englewood Cliffs, N.J.
Prentice-Hall
[c1970]
|
| Pynciau: |