- Being able to describe the causes and effects of post-glacial rebound.
- Being able to describe different Finnish soil types.
- During the last Ice Age, a heavy ice mass caused the Earth's crust to sink into the planet's mantle.
- When the ice mass retreated and melted, the planet's crust began to rise back to its original level in a process known as post-glacial rebound.
- The Baltic Sea has experienced great changes after the last Ice Age.
- Finnish mineral and organic soil types have been formed during and after the last ice age.
- Key words: mineral soil types, organic soil types, post-glacial rebound, clay valleys, ancient shores, relic species.