Today, someone came in to talk to our class about fossils. They explained that fossils are the preserved remains or traces of plants and animals that lived millions of years ago. We learned how fossils form when organisms are buried under layers of sediment and how scientists, called paleontologists, study them to understand what life was like in the past.

They explained that rocks are made up of minerals and come in three main types: igneous, sedimentary, and metamorphic. We learned how each type forms—igneous rocks from cooled lava or magma, sedimentary rocks from layers of sand and mud, and metamorphic rocks from other rocks that change under heat and pressure. The speaker brought in different samples for us to see and touch, which made it easier to understand the differences between them. It was really interesting to learn how rocks can tell us about the Earth’s history and the powerful forces that shape our planet.