1. Unit 4 Story 3 By Mrs. Nailon
Dinosaur Fossils
Unit 4
Story 3
By Mrs. Nailon

2. Fossils Hardened remains of an animal or a plant that lived long ago.
We have learned all we know about dinosaurs from their fossils.

3. Hardened
Become solid
Some fossils are hardened tracks or footprints left behind by a moving animal.

4. Scientists People who study things in nature
A scientist is someone who studies things in nature.

5. Difficult Not easy Hard Antonym; easy
Putting dinosaur bones together to make a skeleton can be difficult.

6. Extinct no longer living Antonym; alive
Scientists must learn about dinosaurs from fossils because dinosaurs are extinct.

7. Paleontologist A scientist who studies fossils
A scientist who studies fossils is called a paleontologist.

8. Chance to find by luck Possibility
Sometimes fossils are found by chance.