HAN JIE SC

THEME: EARTH AND SPACE
EXPLORATION

STUDENT’S NAME : HAN JIE

CLASS : 2 JUPITER

TEACHER’S NAME : PUAN
RUMAIZAH

INTRODUCTION: EARTH AND SPACE
EXPLORATION

1. The formation of star
2. The death of star
3. The milky way
4. Planets in solar system
5. The different of meteoroid,asteroid

and comet.



WHAT IS 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.

- Stars form from an accumulation of gas and dust, which
collapses due to gravity and starts to form stars. The
process of star formation takes around a million years
from the time the initial gas cloud starts to collapse until
the star is created and shines like the Sun.

- When the helium fuel runs out, the core will expand and cool.
The upper layers will expand and eject material that will collect
around the dying star to form a planetary nebula. Finally, the
core will cool into a white dwarf and then eventually into a black
dwarf. This entire process will take a few billion years.



In conclusion the milky way is a huge amazing
place that is our home. It is unique in many ways,
such as our solar system and the black hole sucking
things in at the center. It is so big that even though
there are billions of stars there is still miles of
empty "space" (Helies, 2002). No one has ever
actually seen the whole milky way itself scientists
just use educated methods to calculate the
amount of stars and the sizes of them and the
milky way itself (Helies,2002). We don't realize
that our galaxy is so big.