Heat into Magma
______________ within the Earth breaks down through radioactive decay, releasing
energy. Energy is trapped within the Earth creating extreme heat that melts rock into ______________. One place where magma
rises to the Earth’s surface is ______________. In Iceland, ______________
of molten rock erupt onto the sea bed or land. ______________ is the name
of magma ejected from volcanoes which cools to form islands and continents.
Water into Steam
______________ and rivers carry water toward an area of continental geo-thermal activity. ______________
are areas where ground water seeps into the earth, is heated by magma and resurfaces in pools and streams. ______________ are where the hot water has dissolved silica in rock and then has deposited it as bubbling
pools of hot sediment. ______________ happen when hot water is trapped below very narrow sections in fissures (cracks in rock), becomes superheated and then expands quickly into gas form and pushes all the ground water into the sky.
______________ can be used to capture underground water which has been heated
by Earth’s hot interior. Superheated water can be easily made to boil,
which produces ______________. Steam can be directed into a ______________ to create mechanical (rotational) energy. A ______________
turns rotational energy into electrical energy using magnets. Electricity
is electrical energy carried along ______________. ______________ connect wires and electricity to our homes to run our lights
and appliances. 16