- What must usually happen in order for a dead organism to be preserved as a fossil?
- Why are most fossils found in sedimentary rocks?
- Why do you think scientists often discover only a fossilized part of an organism, such as a leg or a skull? Why don't they discover the rest of the organism?
- How do you think scientists decided that the marks on the fossilized tree trunk were made by beaver teeth?
- How likely is it for an organism living today to become a fossil? Explain.
