En esta segunda clase de Astronomía para segundo de primaria vamos a hablar del sistema solar y de los planetas que lo forman.. Después haremos un diorama sencillo sobre nuestra Vía Láctea con plastilina o play doh. Necesitaremos:
- Cartulina negra (También puede ser madera contrachapada o base de polispan)
- plastilinas de diferentes colores
- purpurina para decorar
- lapices o rotulador y compás
Aquí os dejo un vídeo de como se hace
https://www.youtube.com/watch?v=_GayFoU1ApM
https://www.youtube.com/watch?v=hDQLwg0BjNE
The solar system consists of the Sun and everything that orbits, or travels around, the Sun. This includes the eight planets and their moons, dwarf planets, and countless asteroids, comets, and other small, icy objects. However, even with all these things, most of the solar system is empty space.
The solar system itself is only a small part of a huge system of stars and other objects called the Milky Way galaxy. The solar system orbits around the center of the galaxy about once every 225 million years. The Milky Way galaxy is just one of billions of galaxies that in turn make up the universe.
The solar system was formed about 4.7 billion years ago. It probably started as a loose cloud of gas and dust. Scientists think that a force called gravity pulled parts of the cloud together into clumps. The largest clump was squeezed together so tightly that it got very hot. This clump eventually became the Sun. Over millions of years the other clumps became the planets. The Sun’s strong gravity eventually pulled the planets into their orbits. Over time some of the leftover clumps became asteroids, comets, and other small, icy objects.
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