The negative effects of the global warming phenomenon and how to overcome the global warming

The global warming phenomenon

 

You should know that the global warming is caused by the greenhouse effect , And It is the continuous increase in the average temperature of the Earth's near - surface air .

 

The erosion of the ozone layer and the protection from the ozone layer pollutants

The erosion of the ozone layer

 

The ozone hole is a thinning or losing parts of the ozone layer above the south pole .

You should know that the scientists have noticed that there was the erosion of the ozone layer above the South Pole , Since 1978 , And it is known as the ozone hole .

The importance of the ozone layer and its structure

 

You should know that the ozone layer is located at the height from 20 to 40 km above the sea level , And it is located in the lower part of the stratosphere layer , As it is the first layer of the atmospheric envelope which contains a suitable amount of oxygen gas , and it also faces the ultraviolet radiations that emitted from the Sun .

 

The atmospheric pressure maps and the instruments of measuring the atmospheric pressure

The atmospheric envelope of the Earth

 

You should know that the Earth is surrounded by a gaseous envelope known as the atmospheric air or the atmospheric envelope which is a gaseous envelope rotating with the Earth around its axis , and it extends about 1000 km above the sea level  .

 

The types and the properties of the soil

The types of the soil are the sand soil , the silt soil and the clay soil .

You can see the soil around you , and you will notice the different crops which are planted in the different types of the soil .

 

What are the types of the soil ?

 

You should know that the soil can be classified into three different types according to the kind of the particles ( the components ) that form it .

 

The movement of the moon and the occurrence of the tide and the ebb phenomenon

At night , When you look at the sky , You see the Moon , It is the satellite of the Earth . It is a dark body , But it seems bright because it reflects the sunlight which falls on its surface . 

 

The movement of the Sun and the Earth

Look at the sky , and you will notice that the Sun rises from the east and sets from the west .

 

You should know that the sunrise and the sunset do not occur due to the rotation of the Sun , but it occurs due to the rotation of the Earth around itself ( its axis ) .

 

The weather factors and the importance of the weather prediction

What is the meaning of the weather ?

 

You should know that the weather is the expected conditions of the atmosphere at a certain area during a short period of time , not exceeding one week .

 

The components of the Earth's atmosphere and the importance of them

Do you know what is the Earth's atmosphere ?

 

You should know that the Earth's atmosphere is composed of a mixture of the different gases that make the life on the Earth possible .

 

What is the importance of the Sun ( solar energy ) ?

The Sun is very important in our life .

Do you see the Sun in the sky in the morning everyday ?

 

Do you know the importance of the Sun ?

 

Everybody know that the Sun is the main source of the  energy on Earth .

 

Observing the space and the invention of Telescopes

 

Galileo used lenses to collect light in his telescope .

Who was the first scientist who made astronomical telescope ?

 

" Galileo " was the first scientist who made an astronomical telescope in 1609 . It was made from lenses to collect light in his telescope . 

 

The volcanoes and the safety precautions must be taken at the occurrence of the volcanoes .

Lava ( lava flows ) are molten materials mass that spreads on the volcanic sides .

There are thousands of volcanoes on the Earth's surface . But sixty one only of them are active as an evidence of the permanent activities and movement beneath the Earth's crust . 

Earthquakes and safety precautions must be taken at the occurrence of earthquakes

Earthquakes are rapid and successive shakes of the ground which take place one after the other . 

 

Every day , the Earth's crust is exposed to nearly 400 earthquakes . actually we do not feel them , but the seismic and remote sensation detecting centers record and track them .

The lunar eclipse and safety precautions on observing the lunar eclipse

 

Do you know that The lunar eclipse occurs when the Sun , Earth and the Moon are nearly on one straight line with the Earth in the middle hiding the sunlight from the Moon  ?

 

Do you know that the lunar eclipse occurs in the middle of the lunar month ( the moon phase is full moon )  at a rate of two lunar eclipses per year ? .

 

The types of the solar eclipses and safety precautions on observing the solar eclipse

 

The solar eclipse phenomenon occurs when the Moon passes between the Sun and the Earth casting its shadow on the Earth's surface , where the moon ,the Earth and the Sun are nearly on one straight line with the moon in the middle . 

 

The solar system and the milky way galaxy

The galaxy that our solar system belongs to is known  as " The way of chopped hay galaxy " or " The Milky Way galaxy " It takes an oval shape with coiled spiral arms extend from it , the Sun lies on one of these spiral arms . The solar system consists of the Sun , the Planets , the Moons , the Asteroids , the Meteors , the Meteorites and the Comets .