Do you know what slate, gneiss and schist have in common?
Do you know what the Greek goddess, Persephone, has to do with the seasons and the underworld?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Tide
xTide : A tide is the regular rising and falling of the ocean's surface caused by the gravitational pull of the Moon and the Sun on the ocean and the Earth's rotation.
The Earth's mantle is a rocky, solid shell that is between the Earth's crust and the outer core. The mantle is made up of many different reservoirs that have different chemical compositions. Scientists...Read more