8.E.2.1 - Why Study Fossils? (Part2)

8.E.2.1 - Why Study Fossils? (Part2)

Multiple Choice

Why would a scientist find seashells and crab fossils in a desert?

• It used to be an ocean like habitat before it was a desert.

• Another scientist placed them there to be funny.

• Seashells and crabs used to live in deserts a long time ago.

Multiple Choice

The fossil record is the number of all of the fossils that have been found so far on earth.

• true

• false

Multiple Choice

The ________________________________ is the number of fossils that have been found in the world by scientists.

• evidence

• organism

• fossil record

• paleontologist

Multiple Choice

A geologist uncovered a fossil while digging in the side of a hill. He hypothesized that it was MOST likely from the end of the Paleozoic era or the beginning of the Mesozoic era. How old would the fossil have to be dated in order to support his hypothesis?

• 100 million years old

• 225 million years old

• 400 million years old

• 550 million years old

Multiple Choice

Scientists find dinosaur fossils in the bottom rock layers of a cliff and mammal fossils in the middle rock layer of the cliff. Which could best be concluded from this evidence?

• Dinosaurs ate plantes

• Dinosaurs were eaten by the mammals

• Dinosaurs lived on Earth before the mammals

• Dinosaurs and mammals lived at the same time

Multiple Choice

Which statement best describes the Law of Superposition?

• Each sedimentary layer of rock represents 1,000 years of Earth’s age, much like the rings of a tree.

• In undisturbed layers of sedimentary rock, the upper rock layers are older than the lower rock layers.

• In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks.

• Rocks that form near volcanoes are older than surrounding rock.

Multiple Choice

A scientist finds the bones of a dinosaur. What could help the scientist determine the approximate age of the dinosaur bones?

• the birds living in the area of the bones

• the weather conditions in the area of the bones

• the kinds of trees living in the area of the bones

• the index fossils in the area of the bones

Multiple Choice

Scientists have identified four sedimentary rock layers from an archaeological dig as shown above. Which is most likely the oldest sedimentary rock layer?

• Layer R

• Layer S

• Layer T

• Layer U

Multiple Choice

Which is a process that allows scientists to compare rock layers with others in a sequence to determine their age?

• radiometric dating

• absolute dating

• relative dating

Multiple Choice

If a metamorphic rock contains an intrusion of igneous rock, which rock is the oldest?

• The igneous rock is older.

• The rocks are the same age.

• The metamorphic rock is older.