Rock Strata and Geologic Time

How do most fossils form?

• A living thing dies and is buried under sediment
• The sediment is compressed and compacted 
• They are formed in sedimentary rock
• All of these answers

Tags

NGSS.MS-LS4-1

What is a fossil that is useful for dating and correlating the strata in which it is found?

• a petrified fossil
• a trace fossil
• a cast fossil
• an index fossil

Tags

NGSS.MS-LS4-1

What is the Law of Superposition?

• The oldest rocks are at the top of the sequence and the youngest are at the bottom
• The rocks at the bottom of the sequence must be super strong to support those above
• The youngest rocks are at the top of the sequence and the oldest are at the bottom
• The forcing of molten rock into an earlier formation

Tags

NGSS.MS-ESS1-4

What is relative age?

• The geologic age of a fossil, rock or geologic feature defined relative to other fossils, rocks or features
• The geologic age of a fossil based on when the relatives of that fossil died
• The geologic age of a fossil, or geologic event expressed in units of time
• How old your mom is

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What is a rock mass formed by molten rock being forced into an earlier formation of rock layers?

• Extrusion
• Intrusion
• Fault
• Supposition

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Where would you find the oldest fossils?

• at the top

• at the bottom

• in the middle

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Which fossil is oldest?

• the crab

• the fish

• the frog

• the plant

Tags

NGSS.MS-LS4-1

The idea that the oldest fossils are at the bottom is called ____________.

• The Law of Superposition

• The Law of the Land

• Relative Dating

• Absolute Dating

Tags

NGSS.MS-ESS1-4

Fossils that were common but lived for only a short time are used as ____________

• toothpicks

• hammers

• index fossils

• paperweights

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Index fossils are used to _____________

• fill up big holes in the ground.

• make students feel sad

• hold open doors.

• help scientists figure out how old other rocks and fossils are.

Tags

NGSS.MS-ESS1-4