At one point in time, fossils were living plants or animals. 当它们死亡时,环境中的元素保存了它们,把它们变成了化石. Real fossils can be millions and even billions of years old.
当你想到化石时,首先想到的可能是包裹在岩石中的恐龙骨骼. 但是你知道有几种不同类型的化石吗? Petrified fossils, carbon films, preserved remains, 痕迹化石都能告诉我们一些推荐正规买球平台的世界的东西!
Before you get started on your fossil science activity, test your student’s knowledge with this quick fossil quiz:
- What are fossils?
答案:保存下来的植物、动物和其他生物的遗骸.
- Where are fossils found?
Answer: In sedimentary rock.
- Why do we study fossils?
答案:确定一个有机体的解剖结构,它的生活方式,以及它是如何进化的.
- What are the people who study fossils called?
Answer: Paleontologists.
- Have you seen any fossils? If so, what kind?