Dinosaur Ghosts What Really Happened Theme 2, Selection 3, Day 1 Created By: Mr. Williams What Really Happened Theme 2, Selection 3, Day 1 Created By: Mr. Williams

Erosion

Theory

Excavation

Extinct

Specimens

Geologists

Hypotheses

paleontologists

erosion –A–All the natural processes that wear away earth and rock theory –A–A widely held scientific explanation that is based on evidence but cannot be stated as fact. excavation –T–The process of finding something by digging for it extinct –N–No longer living; having all died out specimens –S–Samples taken for scientific study geologists –S–Scientists who study rocks and the earth’s crust hypotheses –A–And educated or scientific guess based on what we know so far paleontologists –A–A scientist who studies prehistoric life Key Background Vocabulary

Dinosaur Ghosts What Really Happened Theme 2, Selection 3, Day 2 Created By: Mr. Williams What Really Happened Theme 2, Selection 3, Day 2 Created By: Mr. Williams

The ________ of the hillside was caused by heavy rains and wind.

In the 1860s, Joseph Lister published his ______ that unseen germs cause infections.

A later ___________ of the site turned up more fossils.

The passenger pigeon became ________ at the beginning of the twentieth century.

The ___________of pond water were full of tiny creatures.

Rocks can tell __________ a lot about how the earth changed in a particular place.

Ideas remain _____________ until evidence proves that they are true.

A ______________ compares the bones of dinosaurs to those of modern animals.

erosion –A–All the natural processes that wear away earth and rock theory –A–A widely held scientific explanation that is based on evidence but cannot be stated as fact. excavation –T–The process of finding something by digging for it extinct –N–No longer living; having all died out specimens –S–Samples taken for scientific study geologists –S–Scientists who study rocks and the earth’s crust hypotheses –A–And educated or scientific guess based on what we know so far paleontologists –A–A scientist who studies prehistoric life Key Background Vocabulary

Dinosaur Ghosts What Really Happened Theme 2, Selection 3, Day 3 Created By: Mr. Williams What Really Happened Theme 2, Selection 3, Day 3 Created By: Mr. Williams

The erosion of the beach caused…

The scientist’s theory was that…

The excavation uncovered...

Many extinct creatures…

The specimens in the lab…

Geologists study…

My hypothesis is that…

A paleontologist studies…

erosion –A–All the natural processes that wear away earth and rock theory –A–A widely held scientific explanation that is based on evidence but cannot be stated as fact. excavation –T–The process of finding something by digging for it extinct –N–No longer living; having all died out specimens –S–Samples taken for scientific study geologists –S–Scientists who study rocks and the earth’s crust hypotheses –A–And educated or scientific guess based on what we know so far paleontologists –A–A scientist who studies prehistoric life Key Background Vocabulary

Dinosaur Ghosts What Really Happened Theme 2, Selection 3, Day 4 Created By: Mr. Williams What Really Happened Theme 2, Selection 3, Day 4 Created By: Mr. Williams

erosion –A–All the natural processes that wear away earth and rock theory –A–A widely held scientific explanation that is based on evidence but cannot be stated as fact. excavation –T–The process of finding something by digging for it extinct –N–No longer living; having all died out specimens –S–Samples taken for scientific study geologists –S–Scientists who study rocks and the earth’s crust hypotheses –A–And educated or scientific guess based on what we know so far paleontologists –A–A scientist who studies prehistoric life Key Background Vocabulary