miércoles, 16 de enero de 2013

STARS, CONSTELLATIONS AND GALAXIES

How wonderful is to watch the stars in a warm summer night? How much do you know about the STARS?

This video will help yo to understand how to see the stars and also is going to show you some of them.



STAR: It is a spherical body which generates light and heat through nuclear reactions. Most stars consist of hydrogen and helium.
Stars have different characteristics:

  1. Colour.
  2. Size.
  3. Luminosity.

CONSTELLATIONS: They are groups of stars. There are eighty-eight constellations. They used to have the names of characters from mythology or the names of animals or objects because of the shape they form.


NEBULAE: A nebulae is a cloud of dust and gas. Some are illuminated by stars near them.
GALAXIES: Galaxies are enormous groups of stars, gases and dust.
There are three types:
  • Elliptical

  • Spiral.

  • Irregular. 

Our Solar System is inside a Galaxy called THE MILKY WAY.


If you want further information you can look in the following link.

LET'S CHECK YOUR LEARNING WITH THE FOLLOWING TEST AND ACTIVITIES.