With the materials of Box 1 u.a. following attempts possible:
• Determine which types of soil stop or pass water
• find out that a sand and gravel filter retains solid components, while dissolved substances (oil, salt, detergents) can not be removed from the water by filtration
• recognize the influence of polluted water on germinating plants
• understand the stages of mechanical water purification
• Discover the principle of communicating vessels and transfer their applications
• Determine which types of soil stop or pass water
• find out that a sand and gravel filter retains solid components, while dissolved substances (oil, salt, detergents) can not be removed from the water by filtration
• recognize the influence of polluted water on germinating plants
• understand the stages of mechanical water purification
• Discover the principle of communicating vessels and transfer their applications
Caractéristiques
- 431802