Exploring Earth's Layers

a gigantic jawbreaker

a method scientists use for determining the order of events without using actual ages

a record of time passing

<p>Relative dating is the process of determining the age of a rock layer or fossil compared to other rock layers or fossils.</p> Signup and view all the answers

<p>Paleontologists use relative dating to determine when organisms found buried in rock layers may have been alive.</p> Signup and view all the answers

<p>Intrusions are molten rocks that force their way into preexisting rock layers.</p> Signup and view all the answers

<p>A fault is a break in the layers of rocks where the layers can slide past each other.</p> Signup and view all the answers

<p>When a fault occurs, the layers of rocks shift up or down, changing the way the layers appear.</p> Signup and view all the answers

<p>A sidewalk crack is like a fault because both break up the layers that were already laid down.</p> Signup and view all the answers

<p>The bottom layer (C) was formed first, followed by the middle layer (B), then the top layer (A). The intrusion (D) happened after the formation of all three layers.</p> Signup and view all the answers