1. Why the Earth is called „BLUE PLANET“?

3. Instructions Now teacher should present few pictures for example: snow, rain, clouds, iceberg, snow flake, hail, spruit, pond, river, etc.

4. Rain in the street Clouds forming tornado Sunset over the water Iceberg in the sea Glacier Shingle ocean floor Small clouds Top of clouds seen from a plane Falling water drop creating ripples Snowflake Hailstones Rime Frost forming on a glass What have we seen? For example:

5. Experiments 1. The plant in a plastic bag 2. Ice cube melting in beaker 3. Mirror with dew on it.

6. Water Different forms of water on the Earth: cloud, vapour, snow, ice, hail, drop, rain, sea, river, puddle, rime, … What are the names of different states of water? Solid – ice, snow, hail, … Liquid – water, drop, rain, … Gas – vapour, cloud, …

7. Water Under what conditions does ice form? Under what conditions does vapour form?

8. Do you know yet why the Earth is called „Blue PLANET “?