This unit you have been learning about THE SOLAR SYSTEM, THE EARTH, THE MOON and ECLIPSES and finally STARS, CONSTELLATIONS and GALAXIES.
As a final task and project of this unit we are going to invite you to create a lesson about what you have learnt. We want you to be as much original as you can.
Here you have some guidelines to help you to work:
You are going to do this final task with your class group.
The explanation will include the four parts of the unit:
How wonderful is to watch the stars in a warm summer night? How much do you know about the STARS?
This video will help yo to understand how to see the stars and also is going to show you some of them.
STAR: It is a spherical body which generates light and heat through nuclear reactions. Most stars consist of hydrogen and helium.
Stars have different characteristics:
Colour.
Size.
Luminosity.
CONSTELLATIONS: They are groups of stars. There are eighty-eight constellations. They used to have the names of characters from mythology or the names of animals or objects because of the shape they form.
NEBULAE: A nebulae is a cloud of dust and gas. Some are illuminated by stars near them.
GALAXIES: Galaxies are enormous groups of stars, gases and dust.
There are three types:
Elliptical
Spiral.
Irregular.
Our Solar System is inside a Galaxy called THE MILKY WAY.
If you want further information you can look in the following link.
Sometimes there is a great phenomenon, when the MOON, the SUN and the EARTH ALING. This is which we called ECLIPSE.
We can have two kinds of eclipse:
LUNAR ECLIPSE: The Earth passes between the Sun and the Moon and blocks the Sun's light.
SOLAR ECLIPSE: The Moon passes between the Earth and the Sun, blonck the Sun's light and project a shadow on the Earth. If they are in a perfect line it is a TOTAL ECLIPSE.
In the following link you can watch a short video about a Solar Eclipse.
As we have learn the Earth in the last lesson the Earth is the third planet of the SOLAR SYSTEM. Like the song said to us it has got land and sea, this is why it seems to be blue.
THE EARTH
The earth has two kind of movements.
REVOLUTION.
ROTATION
This video may clarify the two concepts for you:
REVOLUTION: It is the movement of the earth around the Sun. It takes 365 days and 6 hours. This is why we have LEAP YEARS every four years. The orbit around the sun it isn't a circle, IT IS AN ELLIPSE.
ROTATION: The earth has an invisible axis, and the earth rotates on it. It takes 24 hours. At any time there is half part facing the sun and half part facing away the sun. THIS IS WHY WE HAVE DAY AND NIGHT, and this is why the sun rises in the east and sets in the west.
SEASONS: We have different seasons depending on what part of the orbit around the sun the Earth is. It is hotter when the Earth is nearer the Sun, and it is colder when it is further from the Sun. We also have different season depending on the hemisphere because of the slighty tilted axis.
The best thing for learning something is doing it. SO LET MAKE A SHORT PLAY TO EXPLAIN THE ROTATION AND REVOLUTION OF THE EARTH.
YOU WILL NEED:
A torch.
Some labels: The Moon, The Earth, The Sun, etc..
The script.
Some IMAGINATION.
In your group you are going to create a short play to explain the rest of the class how the Earth rotates and revolves around the Sun, also you should explain why do we have seasons and day and night.
LET'S CHECK ALL YOUR LEARNING WITH THIS LINK (You can show how the Earth moves and also do the quizz)
After Christmas break it is time to return to school and start with new topics in our Science lessons. Now it's time for THE SOLAR SYSTEM and the PLANETS.
Let's start with this new topic in a funny with a song which is going to explain to you the characteristics of each one of the eight planets of the Solar System.
The Solar System consists on the Sun, eight planets and their moons, comets and asteroids.
The SUN is the largest celestial body
The PLANETS are eight large celestial bodies.
They can be classified into two groups:
terrestial and gas giants.
If you want further information about each planet you can follow the link: