"Design and present an energy converting/transforming invention. The invention needs to undergo at least two conversions and exhibit 3 forms of energy. You must describe the function (what it does) and how it works (formes and transformations). Also, it must include a picture (scientific drawing)" Never mind the drawing part, but please help me think of the two inventions!!

I am so sorry but i need the points soon you can steal my points

where is the photo and the answer choices?

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.