Page 121 - SOCIAL STUDES
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7
The sun: characteristics.
The moon: day and night
Sun
It is a luminous star and occupies the center of our planetary system.
The Sun sends us sunlight that takes ten minutes to reach Earth.
Every day the Sun rises in the east, crosses the sky and sets in the west, giving the impression
that it is moving; but it is not like that, it is the Earth that is revolving around the sun.
Characteristics of the sun:
Z The sun is a star with its own light.
Z It is made up of combustible substances that burn and produce the fire that
light and heat.
Z is a sphere of incandescent gas.
Z It occupies the center of the solar system.
Z Its light and heat are important for life.
Moon
Z It is the satellite of the Earth and it revolves around it.
Z It is in the shape of a sphere.
Z It does not have its own light: at night it shines because it reflects the light of the Sun.
Z On the Moon there is no air or humidity, therefore there can be no type of
life.
Z Its surface is covered with a fine-grained layer similar to sand and
It has craters and volcanoes.
The day and the night
They are produced by the rotational movement of the Earth.
In the illuminated part it will be day and in the dark part it will be night.
Did you know…?
Neil Armstrong was the first man
to visit the Moon in July 1969. He
was sent by NASA, on the
"Apollo 11" spacecraft.
195 SOCIAL PERSON 7
1st Grade
