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Central topic “Water surfaces of planet Earth” – part II

We were naming rivers and lakes of our country; seas that we’ve heard of, visited, and we learned a few new ones. We learned what rocks and mountains are; how sand and gravel are formed; what is a rising and what is a falling tide. We made the learning even more interesting with experiments and experimental art games.
We checked the aggregate state of water; what floats on water and what doesn’t; why liquids of different densities don’t mix.