MACHINE:-. A machine is a tool containing one or more parts that uses energy to perform an intended action. Machines are usually powered by mechanical, chemical, thermal, or electrical means, and are often motorized. MACHINE TOOL:-. Machine tool is also the machine but it must have the following things.
Lava is made up of crystals, volcanic glass, and bubbles (volcanic gases). As magma gets closer to the surface and cools, it begins to crystallize minerals like olivine and form bubbles of volcanic gases.When lava erupts it is made up of a slush of crystals, liquid, and bubbles.The liquid freezes to form volcanic glass. Chemically lava is made of the elements silicon, oxygen, aluminum, iron, magnesium, calcium, sodium, potassium, phosphorus, and titanium (plus other elements in very small concentrations.Have a look at the background information in Minerals, Magma, and Volcanic Rocks.he liquid freezes to form volcanic glass. Chemically lava is made of the elements silicon, oxygen, aluminum, iron, magnesium, calcium, sodium, potassium, phosphorus, and titanium (plus other elements in very small concentrations. Have a look at the background information in Minerals, Magma, and Volcanic Rocks.
1 Igneous Rocks â Lava Textures Lava is an EXTRUSIVE form of Igneous Activity It represents molten rock that has been erupted or extruded onto the earthâs surface from volcanoesLava generally cools quickly (overmonths/years/decades) depending on the thickness of the flow.2  2. Lava Textures-aa Aa lava has a surface made of sharp, angular and jagged blocksof basalt. 2  The cooled surface layer breaks up into these fragments as molten lava continues to flow beneath. 3  8.