Mechanical energy is changed into heat energy, The temperature of objects increases by increasing their speed due to the increase of their kinetic energy, You feel warm when you rub your hands together in...
There are food relations between all the living organisms, The living organisms are classified according to their feeding into the producers which depend on themselves to make their food such as the green plants...
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 energy on...
