•THEME:Earth And Space Exploration
•Student’s Name:WONG CII YAP
•Class: 2 JUPITER
•Teacher’s Name: Cikgu Rumaiza
The formation of star
Stars are born within the clouds
of dust and scattered
throughout most galaxies. A
familiar example of such as a
dust cloud is the Orion Nebula.
Turbulence deep within these
clouds gives rise to knots with
sufficient mass that the gas and
dust can begin to collapse under
its own gravitational attraction.
The death of star
• When a star like the Sun has
burned all of its hydrogen
fuel, it expands to become a
red giant. This may be
millions of kilometres across
- big enough to swallow the
planets Mercury and Venus.
After puffing off its outer
layers, the star collapses to
form a very dense white
dwarf
The milky way
• The Milky Way is a
huge collection of
stars, dust and gas. It's
called a spiral galaxy
because if you could
view it from the top or
bottom, it would look
like a spinning
pinwheel. The Sun is
located on one of the
spiral arms, about
25,000 light-years away
from the center of the
galaxy.
The description of planets in solar system
The differences of meteoroid,asteroid and comet
• Meteoroids. The ones floating around in space
are meteoroids.
• Asteroid. any of millions of small celestial
objects revolving around the sun, often
irregularly shaped and having a great range in
size.
• Comet. A celestial body moving about the sun,
usually in a highly eccentric orbit, consisting of
a central mass surrounded by an envelope of
dust and gas that may form a tail that streams
away from the sun.