The educational resource shows a visual about the shape of galaxies: what causes the variety of shapes among galaxies? Some are spiral galaxies, others are elliptical or spherical.

The educational resource shows a visual about the Milky way: you can manipulate our galaxy in the following visual to see its characterstics.

Travel from the universe to the atom

In this teaching unit you will learn: To understand in a qualitative way the notion of relative movement, to a sufficient degree to be able to explain the apparent movement of heavenly bodies as a consequence of the earth's rotation and translation. To explain in terms of these same movements the succession of days and nights and the seasons of the year. To know the components of the solar system and some of its most interesting properties. To understand the analogous nature among the sun and...