The Earth's Core And Rocks Quiz, Multiple Choice, Questions And Answers, 4th, 5th, 6th, grade science quiz online. Learn about the inner core, outer core, upper mantle, lower mantle and their compsition. Learn about the different types of plates and plate boundaries: convergent, divergent and neutral plate boundaries. Learn about the forces that drive the movements within the Earth. Also learn about the changes that rocks undergo from lava to magma. This is an interactive online geography quiz for kids.