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The set of all the stars and galaxies
What is the univers?
What is a galaxy?
• Each of the parts that make up the universe .• Each galaxy is the set of stars and planets.• The Earth and its solar system belongs to a
galaxy called the Milky Way.
What is the difference between the heliocentric and geocentric system?
System geocentric
System heliocentric
The earth is the center of all the universe and all
stars and planets revolve around it.
The center of the solar system is the sun and the earth and other planets
revolve around
Act theory
What is the Solar System?
• The set of planets and stars that revolve around a star called Sun .
¿Qué es el Sol?
• Es la estrella alrededor de la cual giran los planetas del Sistema Solar.
• Una estrella es una gran masa de gases donde se dan reacciones nucleares que liberan grandes cantidades de energía.
What are the planets of the Solar System ?Planets:
Interior planets : they are solid. Mercury , Venus , Earth, Mars
External planets: they gaseous
Jupiter, Saturn , Uranus and Neptune.
¿Cuáles son los planetasdel Sistema Solar?
Dwarf planets
Too small to be considered planets. Ceres and Pluto
What two types of movements performed planets?
rotation
translation
Motion of a planet around himself
Motion of a planet around
the Sun
What are the satellites?• They are stars or bodies orbiting
planets
•What is the Moon?
It´s the Earth´s satellite
What are asteroids ?
• Small rocky bodies that are not considered planets
What are meteorites ?
• Asteroids coming out of its orbit and can fall on the planets
What are comets ?
Small bodies of ice and dust that move in larger orbits
