the slides about the solar system and beyond. to assist the grade seven and eight with better understandin of the planets and the sun, and how are they scintificaly linked.
5. SOLAR SYSTEM AND BEYOND
THE SOLAR SYSTEM
Beyond the solar system
The Solar System[a] consists of the Sun and the astronomical objects
gravitationally bound in orbit around it, all of which formed from the collapse
of a giant molecular cloud approximately 4.6 billion years ago.
Bodies outside of the solar system are divided into simple, extended and
compound objects. Simple objects are single bodies in space, and extended
objects are generally diffuse, amorphous entities such as nebulae and universal
energies like cosmic background radiation. Compound objects are generally
combinations or groupings of simple objects, though they can include nebulae
where large clusters of stars are contained.
7. The sun is the centre of our Solar System. All the
planets and other objects orbit around it.
The sun makes life on our planet possible by
giving us great amounts of light and heat. Most
of our energy comes from the sun.
Plants need sunlight to make their own food and
give out oxygen. All living things need oxygen.
The sun is a huge ball of white-hot gases.
Permanent nuclear reactions produce the sun’s
light and heat
8. HOW ARE THEY LINKED
The cosmic abundance of oxygen is an
important number
in a wide variety of scenarios. Several debates
have over the
years focused on the disagreements about the
oxygen abundance
of stars and the disparities between estimated
abundances
for different kinds of astronomical objects.
(Gummersbach et
al. 1998; Rolleston et al. 2000)
10. THE SCIENTIFIC LINK BETWEEN
THE TWO
Our solar system is located in the outer reaches of the Milky Way
Galaxy, which is a spiral galaxy. The Milky Way Galaxy contains
roughly 200 billion stars. Most of these stars are not visible from
Earth. Almost everything that we can see in the sky belongs to the
Milky Way Galaxy.
The sun is about 26,000 light-years from the centre of the Milky Way
Galaxy, which is about 80,000 to 120,000 light-years across (and
less than 7,000 light-years thick). We are located on one of its spiral
arms, out towards the edge. It takes the sun (and our solar system)
roughly 200-250 million years to orbit once around the Milky Way.
11. 1
2
3
4 Across
2. Earth's companion.
5 6 7 4. The farthest planet from the sun.
5. An instrument that scientists use
to observe planets.
8 9 10
9. This planet is known as the red
11 planet.
11. One of many 'rocks' in a belt
between Mars and Jupiter.
12 13
12. Planet between Saturn and
14 Neptune.
15 16 14. The largest planet in the solar
system.
15. Planet named after the sea god.
Down
1. Planet known as the evening 7. The path that a planet takes
star. around the sun.
2. Our galaxy. 8. Planet closest to the sun.
3. An icy rock that has bright tail 10. Planet famous for its rings.
when it comes close to the sun.
13. Star at the center of our solar
6. Our sun is this. system.
16. Our planet.
