Why the Earth is called „BLUE

PLANET“?

Instructions

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

• 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:

Experiments

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

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, …

Water• Under what conditions does ice form?• Under what conditions does vapour form?

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