Do you know what is the Earth’s atmosphere? The Earth’s atmosphere is composed of a mixture of the different gases that make life on the Earth possible. The components of the atmosphere The atmosphere...
The energy If you look around you, you will notice that everything needs the energy to do their functions. You need food to obtain the energy that helps you to work, move, play, …..etc,...
The friction Do you know what is the meaning of the friction? The friction force is the force exists between the two surfaces when they touch each other and it affects in the opposite...
The soil pollution The pollution is very dangerous, There are different kinds of pollution as air pollution, the water pollution & the soil pollution, The pollution is any change in the environment that disturbs...
The sources of energy The Sun is the main source of energy, and it is very important in our life, but there are resources of energy which are the renewable sources of energy and...
The importance of the Sun Do you see the Sun in the sky in the morning every day? Do you know the importance of the Sun? The Sun is the main source of the...
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