Solar System Assessment

Solar System Assessment

Nasreen Farook

Mr. Gay

North Huddersfield Trust School Set 1

Project OverviewTo describe how the solar system was formed and to give theories.

The Motions Of The Sun, Moon, Planets And Stars.

We all know that that the objects in the universe all move.

A man called Nicolaus Copernicus suggested a very different idea:

The earth and the planets make regular revolutions around the sun.

The Motions Of The Sun, Moon, Planets And Stars.

The earth rotates once on its axis about 24 hours.

As the earth turns the moon and the stars change position in our sky. We notice the sun rising from the eastern sky in the morning and sets in the western sky in the evening.

Why does less energy reach the earth in this country during

winter and not summer? We have a cycle of daylight and darkness

approximately every 24 hours. The side of the earth facing the sun

experiences daylight were as towards the opposite side ( facing away from the sun) experiences darkness or night time

In summer it is warmer but colder in winter because the sun is closer towards the earth in summer season and colder in winter season.

Why was Pluto downgraded from being a planet?

In 1930 once known to be the ninth planet of our solar system Pluto is the smallest, coldest and most distant planet from the sun.

Unfortunately Pluto had a mass of 0.07 times the mass of other objects in orbit. Because of this on September 13th 2006 Pluto was officially downgraded to be called a dwarf planet.

The structure of comets.

Comets are made up of a mixture of frozen water, gases and dust like dirty muddy ice balls.

They are the left overs of the solar system.

Comets are only visible when near sunlight.

Features of comets

The Nucleus - ice, dust and small rocky particles

The Coma - a visible fuzzy atmosphere The Dust Tail - a long tail of dust which

reflects sunlight. The Ion Tail - always points away from

the Sun

How was the solar system formed?

The solar system formed around 4.5 billion years ago from a huge swirling cloud of dust. We know this because advances in technology, such as the Hubble telescope, have allowed us to look deep into space.

The planets formed on a flat plane of the spinning disc of dust. Forces or sticky carbon coatings made dust particles stick together to stuck together to form rocks.

How scientist think the moon was formed?

There are three theories about how the moon came to be in place:

that the moon came out of the crust of the Earth

that the moon was captured by the Earth that the Earth and moon formed together

out of the primordial nebula

Was most scientists believe:

Many scientists believe that the moon was once part of the earth atmosphere.

The different theories about how the planets were formed.

a most popular theory called nebular hypothesis:

States that our Solar System began around 4.6 billion years ago when part of a cloud of gas, which was filled with particles of ice, dust, rock, and other particles, collapsed. These clouds collapsed which heated up and eventually turned into a star.

Theories about the formation of our solar system.

observations which lead to the proposal of the theory in the first place.

1. All the planets orbit the Sun in the same direction. Most of their moons also orbit in that direction, and the planets (and the Sun) rotate in the same direction. This would be expected if they all formed from a disk of debris around the proto-Sun.