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CELESTIAL BODIES IN THE UNIVERSE (STARS (A nuclear reaction (They are…
CELESTIAL BODIES IN THE UNIVERSE
STARS
Big balls of gas
A nuclear reaction
Produces
Light
Heat
They are classified according to
Colour
Brightness
Size
A group of them form
A CONSTELLATION
A pattern in the sky
Has a name
It indicates the shape
Example
LEO
THE SUN
A GALAXY
A huge collection of
Stars
Dust
Gas
There are billions of them
Different types
Different shapes
The Solar System
A spiral galaxy called
MILKY WAY
Moves through space
Forms big structures
Called Galaxy Clusters.
They have thousands of galaxies
PLANETS
Round celestial bodies
Orbit the Sun
No light
Some of them have
Natural satellites
MOONS
Revolve around planets
DWARF PLANETS
Round
Are smaller than planets
PLUTO
Orbit the Sun
COMETS
Made up of
Ice
Dust
Gases
When they travel near the Sun, part of them melt and dust and gases trails behind it
What we see as a bright light shining tail
ASTEROIDS
Rocks
Orbit the Sun
There is an asteroid belt between Mars and Jupiter
Irregular shapes
Different sizes
METEOROIDS
Small pieces of rock from an asteroid
If they enter the Earth's atmosphere
They burn
And become
METEOR
Showers
If it hits the Earths surface
METEORITE
Held together by GRAVITY
