Door de tekst
heen staan verschillende experimenten.
- Where are We?
The earth in the solar systen. Time
- The Beginning of Life
How life began, the Dinosaurs, evolution, classification of living
- Man Alive
Man as an animal and how he evolved. Races.
- The Wonder of water
Dependence of life on water. Water cycle.
- Puffing and Blowing
The effect of air on life. The air cycle. Some uses of air.
- Flames and Smoke
The effect of fire on human life. The discovery of fire. Purring fires
- Man Must Build
Man changes common materials into bricks and morta, glass and timber
- Metals in te Service of Man
The different properties of metals and thier suitability for various