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The alkaline earths take their name from the one who received their oxides, "earths", which have alkaline properties. They are harder than alkali metals, have shine and are good electrical c ...
The periodic table of the elements is the way proposed by Dmitri Mendeléyev in 1869 to arrange the chemical elements, which are ordered by their atomic number, their electron configuration and ...
Test yourself with this interactive game about the human skeleton ,Do you know what is the name of each anathomical item shown on the picture? You have to choose the right answer from a list of severa ...
Would you know how to locate in this game each human anathomical item which you have been asked for? You have to point out each exact location on the map.
Zoom in or zoom out the image in order to adj ...
Would you know how to locate in this game each human anathomical item which you have been asked for? You have to point out each exact location on the map.
Zoom in or zoom out the image in order to adj ...
Would you know how to locate in this game each human anathomical item which you have been asked for? You have to point out each exact location on the map.
Zoom in or zoom out the image in order to adj ...
Test yourself with this interactive game about the human skeleton ,Do you know what is the name of each anathomical item shown on the picture? You have to choose the right answer from a list of severa ...
Test yourself with this interactive game about the human skeleton, Do you know what is the name of each anathomical item shown on the picture? You have to choose the right answer from a list of severa ...
Would you know how to locate in this game each human anathomical item which you have been asked for? You have to point out each exact location on the map. Zoom in or zoom out the image in order to ad ...
Test yourself with this interactive game about the human skeleton ,Do you know what is the name of each anathomical item shown on the picture? You have to choose the right answer from a list of severa ...
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