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This lesson presents soil formation, the components of soil, and soil protection.
Author: Horváthné Kunstár Andrea, Kissné Gera Ágnes
soil, humus, soil gas, soil moisture, fragmentation, weathering, soil types, soil pollution, soil protection, erosion, deflation, experiment, biology, geography, ecology, environmental protection, physical geography
Let's find solutions to the global environmental issues!
This lesson presents the internal structure of Earth, the geospheres and their general properties.
A lesson about Roman snails.
You can follow the process of the formation of rocks.
A lesson about the most important characteristics of the common earthworm.
In this lesson you will learn more about minerals and rocks.
This lesson introduces you to the world of minerals.
This lesson presents different types of mixtures and how the substances in the mixtures can be separated.