NEW
Font size
WorksheetsUnit 6 Lesson 2 quiz
Total questions: 15
Worksheet time: 12mins
At a family reunion, people are talking about everyone’s age. The family members all line up without saying anyone’s exact age. What principle is the family using?
absolute age
relative age
estimate age
approximate age
Sharon is studying some rock layers near her home. She uses the terms Precambrian, Paleozoic, Mesozoic, and Cenozoic to name them in order of their age. What are all these terms part of?
the world calendar
Earth’s history
the geologic time scale
the fossil record
Scientists know that the continents have moved across Earth’s surface throughout history. What is the name of the idea that first described the movement of continents?
plate tectonics
continental drift
continent movement
landform change
Scientists use fossils to describe how all of the environments on Earth have changed over time. Which fossil discovery represents a change in the environment where the fossil was found?
fish in rocks on top of a mountain
seashells in the sand at the beach
horse bones in soil in the prairie
polar bear bones in Alaska
Many fossils found today are from plants and animals that no longer live on Earth. Sometimes this is due to a large number of species dying out over a relatively short time. What do scientists call this type of dying out?
great die-off
species death
mass extinction
population change
Julian was given a bag with several fossils in it from the rock layers shown below. If one of the fossils is older than layer 1, but younger than layer 3, which rock layer was it collected from?
1
2
3
4
Which fossil’s relative age cannot be determined based on its position?
a fossil found in every rock layer
a fossil found in the bottom rock layer
a fossil found in the top rock layer
a fossil found in a middle rock layer
Which fossil could be a good index fossil?
a fossil found in every rock layer
a fossil found in only one place in the world
a fossil found only in a top rock layer
a fossil found in a middle rock layer in many places in the world
In a laboratory activity, students are using symbols to represent types of fossils. Several of the symbols look similar to each other. Why is it important for the students to draw each symbol carefully?
so the symbols cannot be confused
so there are enough symbols
so the symbols resemble fossils
so the symbols are familiar
Which can you conclude about a fossil that appears in many rock layers?
The fossil is useful for scientists.
The organism lived in many places in the world.
The organism lived for a geologically short period of time.
The organism lived for a geologically long period of time.
Fossils of Mesosaurus are found in South America and Africa. What does this suggest?
that Mesosaurus lived in the ocean
that Mesosaurus ate the plant Glossopteris
that Mesosaurus can be used as an index fossil
that these two continents were once connected
Which could result in a mass extinction?
heavy thunderstorms
no rain for long periods of time
alternating dry and wet seasons
rainy seasons followed by short periods of dry weather
