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Fossils. Dinosaurs. Dinosaurs lived millions of years ago, but are now extinct. Extinct – Describes a kind of living thing that is no longer found on Earth. . Fossil- The hardened remains of a plant or an animal that lived long ago . There are different types of fossils.
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Extinct – Describes a kind of living thing that is no longer found on Earth.
Fossil- The hardened remains of a plant or an animal that lived long ago.
There are different types of fossils. A dinosaur track is called a trace fossil.
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Paleontologists study fossils to see how plants and animals have changed over time.
S3E2. Students will investigate fossils as evidence of organisms that lived long ago. a. Investigate fossils by observing authentic fossils or models of fossils or view information resources about fossils as evidence of organisms that lived long ago. b. Describe how a fossil is formed.