5. A new national park has two caves that visitors can see. One cave is made of a different type of rock than the other one. Park rangers want to explain the difference to visitors. How could energy have played a role in the different rock types forming? Energy changes rock on different continents in different ways. Each continent on Earth has different rock that might form liquid rock or small rock pieces when exposed to energy. Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces of rock. Energy caused one rock type to form, but not the other. Rock that forms because of energy is a different type of rock than rock that forms without energy. Energy causes different types of rock to change in different ways. Energy changes igneous rock into liquid rock and changes sedimentary rock into small pieces of rock.