After read the text of the Universe and its components, mach the words in bold with the definitions.

Words	Definitions
	They give out light and heat.
	They are made up of ice, dust and gases and they orbit the Sun.
	The name of our galaxy.
	They are small and rocky.
	The Earth’s satellite.
	It gives out heat and light to the Earth.
	Huge groups of stars, gases and dust.
	Gas clouds.
	Groups of stars.
	They orbit the planets.
	They orbit the Sun.
	Most of them are between Mars and Jupiter.
	They are larger than other planets.
	It is a star.