| 1. Earth |
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| The planet Earth is spherical in shape,
slightly flattened at the poles, and measures approximately 13,000km
(8,125 miles) in diameter. Inside the Earth there is a series of layers
of different types of hot rock and metals. The surface is the outer
part of the Earth. It is divided into three parts. One is a solid
part, what we call the continents, made up of rock and the land we
walk on. Another one is a liquid part, made up of seas, rivers, lakes
and underground water, which occupies most of the Earth’s crust.
Another part is made up of the gases that comprise the air surrounding
the Earth, called the atmosphere. |
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| Supposing. When we make a supposition we
imagine that something is a fact, even though we might not be certain
whether it is or not. We might even suppose that something is a
fact even though we know for sure that it is not. For example,
we might suppose that instead of having been born in small town
we were born in a big city. If we suppose a certain state of things
we can then think about what might happen as a result. Supposing,
therefore, makes it possible for us to experiment with thinking. |
| Suppose what would happen in these cases: |
| 1. |
If the Earth’s crust were
made up only of land, without water and air.
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| 2. |
If the air that surrounds the Earth were not
in movement. |
| 3. |
If the Earth had no atmosphere. |
| 4. |
If the Earth did not receive the Sun’s
radiation. |
| 5. |
If the Earth were 100km (62.5 miles) in diameter. |
| 6. |
If it never rained on Earth. |
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Music. Listen to: Song of
the Earth by Gustav Mahler. |
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| Create a painting individually
or a group mural with textures made from things found on the ground:
sands, clays, topsoils, leaves, twigs, snail shells, etc. |
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| © Grup IREF 2003, with the support of the European Commission, DG XXII (Socrates/Comenius 3.2) |
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