Rock Layers Record Landform Changes

 

1.        Landforms often are made of many ______ layers.

• fossils

• rock

• pancake

• dinosaurs

It is the age of one thing compared to another. It explains things in terms of older and younger.

(without dates)

• fossil 

•    relative age

•    absolute age

• rock 

Grade 4 class took a field trip to look at some rock layers and the fossils in the rock. The fossils found in each rock layer are shown.  Which fossil is the oldest?    

• clamshell

• trilobite

• cow skull

• dinosaur bone

  Scientists use fossils to describe how environments on Earth have changed over time. Which fossil discovery represents a change in the environment where the fossil was found?

 

• seashells in rocks on top of a mountain

• fishbones in the sand at the beach

• polar bear bones in Alaska

• horse bones in soil in the prairie

All these items were found buried into rock. Which of them are fossils? Check ALL that apply.

• A plant leaf fossil

• A soup can

• A dinosaur bone

• A footprints of an extinct animal

Which layer is the oldest?

• Layer F

• Layer C

• Layer A

EVIDENCE OF PAST LIFE

Select the statement below NOT shown by fossils.

• shows us which plants and animals first developed

• shows us structures of animals

• shows us when animals developed body adaptations (like legs and feathers)

• shows us what animals sounded like

A fish fossil was found in layer A. What does this tell us about the possible history of this area?

• Fish used to live on land there

• This area has always been land

• That area used to be underwater

• Layer A is currently covered in water

THE ORDERING OF ROCK LAYERS

Over millions of years, ________ motion changed the layers. As a result, the youngest layer is not always found on top.

• ocean waves

• wind

• tectonic plate

• magical

People who study fossils are called ____.

• mathematicians

• fossilologists

• paleontologists

• fossil hunters