Chapter 9 Earth & Time CPO Earth Science

The law that states that the bottom layer of a rock formation is older than the layer on top is

Where are you? Theme song for?

fish and plants first appeared during what era?

The rock at the bottom of the picture is

Relative dating uses various clues to figure out:

The theory of cross-cutting relationships is a vein of rock cuts across a rock’s layers is:

Toward the end of the Paleozoic era, much of the land was covered with:

The largest divisions of time on the geologic time scale are known as:

Mesozoic means:

Fossils are used to determine the relative age of rock layers is known as (2 possible answers)

How many horizontal layers do you have in your locker right now?

The correct order of events for fossils formation is:

This type of test in Mrs. H's class is

A meteor may have hit Earth and caused the extinction of dinosaurs & plants species during:

What types of organisms lived on Earth during the Precambrian Era?

Millions of years ago, the continents were once a great landmass that has been named:

Layers of rock on one side of the Grand Canyon match up layers on the other side shows...

Horizontal rock layers: (more than one right answer)

What chapter are we testing on (right now) in the CPO textbook and lab book?

Fossils are most often formed from which parts of a dead organism?

Dinosaurs, birds, and flowering plants first appeared during what era?

Which theme song has "Science Rules"?

What are the three classification rock types?

A scientist who studies the preserved remains of dead plants and animals is known as a:

In the geologic time scale, major periods of time are divided into:

Humans and mammals first appeared in what era?

Scientists have used radioactive decay to estimate that Earth is:

Eras:

Rock pieces found inside another rock are

It takes 4.5 billion yrs for 1/2 the uranium atoms in a specimen to turn into lead. This is:

Geology is a field of science that includes the study of:

A tree grows one tree ring for every:

Which best explains why the same types of fossils are found spread on different continents?

Which part of the locker is the oldest layer

A method of putting events in the order in which they happened is known as:

Uranium, an unstable element, decays into lead, which is a stable element. This process is:

A tree is sliced showing rings, in one area the rings are narrower than in other areas...why?

The method of tree-ring dating is known as:

A method of estimating the age of a rock sample in years is called: