Unit 6 Lesson

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

Tags

NGSS.MS-ESS1-4

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

Tags

NGSS.MS-ESS1-4

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

Tags

NGSS.MS-LS4-1

This illustration is a/an _____________

• compound

• element

• mixture of elements

• mixture of elements and compounds

Tags

NGSS.MS-PS1-1

Select the subatomic particle that has a mass of 1 AMU.

Tags

NGSS.MS-PS1-1

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

Tags

NGSS.MS-LS4-1

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

Tags

NGSS.MS-ESS1-4

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

Tags

NGSS.MS-LS4-1

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.

Tags

NGSS.MS-LS4-1