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A satellite is something that people have launched into orbit around the Earth. Satellites circle the Earth, either remaining as if they are in the same place as seen from the Earth, called Geostationary orbit, or moving around the Earth.
Satellites are used for many things. They can be used to watch and take photos of the Earth for military or other reasons; they can be used for communications like television or telephones, to find out where you are using Global Positioning System (GPS), to watch and help predict the weather, and for various research purposes.
Sodalite is a blue stone that is found in large veins. It is one of the minerals found in lapis lazuli. Large quantities of sodalite are opaque but the individual small crystals are transparent.
Sis forStalactite
Stalactites are formed when water that has a lot of minerals dissolved in it drips through the roof of a cave and some of the minerals are left behind. Over a long time, the mineral deposits form into spikes hanging from the ceiling of the cave.
Where water drips from a stalactite, stalagmites form.
Sis forStalagmite
Stalagmites grow up from the floor of a cave as water with a lot of dissolved minerals drips from the cave ceiling. Where the water drips from a stalactite forms. Stalagmites are typically shorter and fatter than stalactites.
Tanzanite is a mineral that looks a different colour depending on what angle you look at it from - it can be sapphire blue, violet, or burgundy. Tanzanite is a rare gem, found mostly in the foothills of Mount Kilimanjaro.
